🕷️ Crawler Inspector

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Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 13 (from laksa017)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa013.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes","crawl_time":1775117525,"first_indexed_time":1702410010,"http_code":200,"src_unparsed":"com,singlecare!www,\/conditions\/loss-of-taste-and-smell-causes s443","src_root_hash":"13591868619915948613","history_drop_reason":null,"meta_title":"What causes the loss of taste and smell? Related conditions and treatments","meta_descriptions":["The loss of taste and smell can be caused by aging, infections, or medication side effects. The loss of taste and smell may resolve with treatment within a varying timeframe."],"attrs_boilerpipe_text":"Overview: What does the loss of taste and smell feel like?\nTaste and smell are closely related senses, but they are very different. Taste buds on the tongue sense what we taste—sweet, sour, salty, bitter, and savory—and the brain processes these sensations in one region. Smell receptors in the nose detect what we smell, and another part of the brain processes these sensations. The sense of smell can be affected by some medical conditions. Other medical conditions can affect the sense of taste. Most of what we believe we “taste” is what we smell, so when people have a reduced sense of smell (hyposmia) or a complete loss of smell (anosmia), they typically feel they’ve lost both taste and smell. However, that’s not true. Only\n5%\nof people who say they’ve lost their taste and smell have a taste disorder—all the rest only have smell disorders. About\n1 in 20 people\nhave a reduced sense of taste (hypogeusia) or completely lose their taste (ageusia). In those cases, they can still recognize flavors, like steak, but don’t taste sugar or salt. It’s less common for people to lose both their taste and smell.\nWhat causes the loss of taste and smell?\nOnly a few medical conditions cause the loss of taste and smell. The most common cause of loss of taste and smell is age. As people age, both taste and smell become less sensitive. Other loss of taste and smell causes include:\nUpper respiratory infections, such as\ncold\n,\nflu\n, or COVID-19\nAllergic rhinitis\nDental problems, such as gum disease (gingivitis) or tooth decay\nDietary deficiencies or malnutrition\nHead or brain injury\nNeurological disorders, including\nAlzheimer’s disease\n,\nmultiple sclerosis\n,\nParkinson’s disease\n, and Bell’s palsy\nDiabetes\nAutoimmune disorders, such as Sjogren syndrome \nHead or neck surgery\nRadiation therapy\nGenetics\nSome\nmedications\n, such as\nantibiotics\n, chemotherapy,\nstatins\n,\nantihistamines\n,\nhigh blood pressure\nmedications, and\nthyroid hormones\nSmoking\nChemical exposure\nShould I be worried about the loss of taste and smell?\nThe loss of taste and smell is not health-threatening, but it could be a sign of a serious medical condition, such as a COVID-19 infection. If both taste and smell decrease suddenly, persist for several weeks, or are accompanied by other symptoms, contact a healthcare provider for medical advice. Emergency medical care is needed if there are severe symptoms, such as mental changes, difficulty breathing, or a high fever. \nHow is the cause of the loss of taste and smell diagnosed?\nDiagnosing the cause of loss of taste and smell is a complex puzzle to solve. Often, there’s just one cause, but there’s a possibility that two things are going wrong, one affecting the sense of smell and another affecting the sense of taste. Although a primary care provider may start the diagnosis process, a dentist or a specialist in ear, nose, and throat disorders, called an otolaryngologist, may be needed.\nDiagnosis will require a complete physical exam, an exam of the head and neck, and an exam of the oral cavity. An ear, nose, and throat (ENT) specialist may look at the nasal passages for problems in the nasal cavity, such as\nnasal polyps\n. This will be done with a procedure called a nasal endoscopy, which is performed with a camera attached to a flexible tube. A dentist may have to follow up on an oral exam with a complete dental exam.\nIn addition to the many tests that may be required, people may undergo taste or smell tests. These tests aren’t required, but they confirm and quantify the extent to which taste and smell have been compromised.\nTaste tests are usually just that. People taste solutions or apply paper strips or cotton swabs to various parts of the tongue to identify the taste. A clinician or the patient will fill out a rating questionnaire to determine how much of a substance is required to produce a taste response, the intensity of the sensation, and whether it’s enjoyable or awful. Using cotton swabs, a clinician can then determine what parts of the tongue are affected.\nSmell tests\naccomplish the same goals. By having the patient smell various substances, the clinician can determine the minimal amount of smells that must be identified, the intensity of smells, and whether those smells are experienced as good or bad.\nElectrodes can measure taste and smell in less common cases. Other tests may include blood tests, urine tests, or medical imaging of the head or neck, such as a CT scan, MRI, or PET scan.\nRELATED:\nShould I see an ENT or allergist?\nIs the loss of taste and smell contagious?\nIf the loss of taste and smell is associated with a viral infection, such as a cold, flu, or COVID-19, other people can catch that infection. The loss of taste and smell, however, is not contagious. In some cases, the infection will resolve, but the loss of taste and smell will linger for days, weeks, or even months afterward. Once the original infection is gone, there’s no danger of contagion.\nHow long does the loss of taste and smell last?\nThe loss of taste and smell will last for as long as the underlying condition is causing it, sometimes longer. The loss of taste and smell is usually a temporary health problem lasting days or weeks. Some causes may result in a chronic or permanent reduction in taste and smell, particularly if nerves or the central nervous system are damaged. In those cases, smell retraining and other therapies can help improve smell, but not taste.\nHow to stop the loss of taste and smell\nHealthcare professionals don’t treat loss of taste, but they can\ntreat loss of smell\nin a limited way through smell retraining, occupational therapy, and some medications that may improve olfactory function, such as\ncorticosteroids\nand\ntheophylline\n. \nThe only way health professionals treat the combined loss of taste and smell is by treating the underlying cause: \nGetting rid of the loss of taste and smell when it’s due to smoking is not complicated—most people will see improvements in taste and smell when they quit smoking and avoid secondhand smoke\nEliminating exposure to environmental causes, such as toxins or pollution, is usually enough to improve taste and smell\nThe sense of taste and smell will usually return when the body fights off the infection that’s causing it, but the loss of taste and smell may linger for days, weeks, or longer\nAvoiding allergens and using allergy medications can help prevent and treat allergic reactions\nSwitching to different types of medications may help with the loss of taste if a medication is the cause\nDietary deficiencies are treated with dietary changes and supplements \nDental problems are treated with oral surgery, prescription medications, and adopting good oral hygiene practices\nDry mouth can be treated by drinking fluids, using humidifiers, breathing steam, or using artificial saliva\nOther medical conditions that cause the loss of taste and smell may require prescription medications or surgery\nLiving with the loss of taste and smell \nLiving with the loss of taste and smell is challenging. Much of our enjoyment in life comes from tasting and smelling foods and drinks and experiencing pleasant smells around us. The first thing people can do is try\nsmell retraining\n, a proven therapy that can be done at home. Smell retraining increases one’s perceptions of the sense of smell and involves sniffing the same four scents from essential oils twice per day. The nature of these essential oils is not considered important, but in the\noriginal research\n, the investigators used eucalyptus, rose, citronella (lemon), and eugenol (cloves). Other remedies involve drinking fluids to keep the oral cavity moist or trying various foods to find the most flavorful and enjoyable. \nRELATED:\nHow to regain taste and smell after coronavirus\nWhat’s next? Additional resources for people with the loss of taste and smell\nTest and diagnostics\nAguesia\n, StatPearls (2023)\nDiagnosis of anosmia and hyposmia: A systematic review\n,\nAllergy & Rhinology\n(2021)\nInfluence of medications on smell and taste disorders\n,\nWorld Journal of Otorhinolaryngology-Head and Neck Surgery\n(2018)\nOverview of smell and taste disorders\n, Merck Manual Consumer Version (2023)\nTaste disorders\n, NIH National Institute of Deafness and Other Communication Disorders (2023)\nTreatments\nAguesia\n, StatPearls (2023)\nSmell retraining therapy\n, ENT Health (2023)\nTreatment strategies for postviral olfactory dysfunction: A systematic review\n,\nAllergy and Asthma Proceedings\n(2022)\nScientific studies and clinical trials\nEffects of olfactory training in patients with olfactory loss\n,\nThe Laryngoscope\n(2009)\nMore information on related health conditions\nAllergy treatments and medications\n, SingleCare (2023)\nCommon cold treatments and medications\n, SingleCare (2023)\nInfluenza treatments and medications\n, SingleCare (2020)","attrs_markdown":"- [![SingleCare](https:\/\/www.singlecare.com\/content\/images\/header\/single-care-logo1.svg)](https:\/\/www.singlecare.com\/)\n\n- [Skip to content](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#content)\n- [Sign up]()\n- [Log in](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes)\n  \n  Not a member?\n  \n  Sign up free\\!\n- [How it works](https:\/\/www.singlecare.com\/how-it-works)\n- Get the app\n  \n  Scan the code with your camera phone to download the free SingleCare app\n  \n  Text yourself a link\n\n- [![](https:\/\/www.singlecare.com\/content\/images\/header\/menuIcon.svg)](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#hamburgerMenuContainer)\n\n- [Home](https:\/\/www.singlecare.com\/)\n- \\>[Causes Directory](https:\/\/www.singlecare.com\/conditions-causes)\n- \\>[Loss of taste and smell causes](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes)\n# What causes the loss of taste and smell? Related conditions and treatments\nMedically reviewed by [Josephine Bawab, Pharm.D.](https:\/\/www.singlecare.com\/blog\/author\/josephine-bawab-pharm-d\/)\n\nLicensed Pharmacist\n\nUpdated Jun 10, 2024 • Published Dec 11, 2023\n\nFact Checked\n\nIn this article:\n\n- [Overview](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#overview-what-does-the-loss-of-taste-and-smell-feel-like)\n- [Key takeaways](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#keyTakeawaysSection)\n- [Causes](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#what-causes-the-loss-of-taste-and-smell)\n- [When to see a doctor](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#should-i-be-worried-about-the-loss-of-taste-and-smell)\n- [Diagnosis](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#how-is-the-cause-of-the-loss-of-taste-and-smell-diagnosed)\n- [Transmission](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#is-the-loss-of-taste-and-smell-contagious)\n- [Timeline](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#how-long-does-the-loss-of-taste-and-smell-last)\n- [Treatment](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#how-to-stop-the-loss-of-taste-and-smell)\n- [Managing everyday life](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#living-with-the-loss-of-taste-and-smell)\n\n![](https:\/\/www.singlecare.com\/content\/images\/icons\/union.svg)\n\nIn this article\n\n![](https:\/\/www.singlecare.com\/content\/images\/icons\/dropDownArrow.svg)\n\n- [Overview](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#overview-what-does-the-loss-of-taste-and-smell-feel-like)\n- [Key takeaways](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#keyTakeawaysSection)\n- [Causes](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#what-causes-the-loss-of-taste-and-smell)\n- [When to see a doctor](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#should-i-be-worried-about-the-loss-of-taste-and-smell)\n- [Diagnosis](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#how-is-the-cause-of-the-loss-of-taste-and-smell-diagnosed)\n- [Transmission](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#is-the-loss-of-taste-and-smell-contagious)\n- [Timeline](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#how-long-does-the-loss-of-taste-and-smell-last)\n- [Treatment](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#how-to-stop-the-loss-of-taste-and-smell)\n- [Managing everyday life](https:\/\/www.singlecare.com\/conditions\/loss-of-taste-and-smell-causes#living-with-the-loss-of-taste-and-smell)\n\n## Overview: What does the loss of taste and smell feel like?\nTaste and smell are closely related senses, but they are very different. Taste buds on the tongue sense what we taste—sweet, sour, salty, bitter, and savory—and the brain processes these sensations in one region. Smell receptors in the nose detect what we smell, and another part of the brain processes these sensations. The sense of smell can be affected by some medical conditions. Other medical conditions can affect the sense of taste. Most of what we believe we “taste” is what we smell, so when people have a reduced sense of smell (hyposmia) or a complete loss of smell (anosmia), they typically feel they’ve lost both taste and smell. However, that’s not true. Only [5%](https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC7693910\/) of people who say they’ve lost their taste and smell have a taste disorder—all the rest only have smell disorders. About [1 in 20 people](https:\/\/link.springer.com\/article\/10.1007\/s00415-010-5763-5) have a reduced sense of taste (hypogeusia) or completely lose their taste (ageusia). In those cases, they can still recognize flavors, like steak, but don’t taste sugar or salt. It’s less common for people to lose both their taste and smell.\n\n## Key takeaways:\n- The loss of taste and smell is a common symptom that may be caused by aging, infections, allergies, dietary deficiencies, poor oral hygiene, dental problems, smoking, environmental causes, nerve injury, neurological disorders, autoimmune disorders, and medication side effects.\n- Typically, the loss of taste and smell does not require immediate medical attention unless there are other serious symptoms present.\n- The loss of taste and smell generally does not require treatment, but the underlying cause may require treatment. It may or may not resolve with or without treatment, depending on the cause.\n- Treatments for the loss of taste and smell vary by cause, but treatments for the loss of smell may include occupational therapy, smell retraining, or prescribed medications to help improve the ability to smell. Read more about treatments for [allergies](https:\/\/www.singlecare.com\/conditions\/allergy-treatment-and-medications), [gingivitis](https:\/\/www.singlecare.com\/conditions\/gingivitis-treatment-and-medications), [hypothyroidism](https:\/\/www.singlecare.com\/conditions\/hypothyroidism-treatment-and-medications), [diabetes](https:\/\/www.singlecare.com\/conditions\/diabetes-treatment-and-medications), and [Bell’s palsy](https:\/\/www.singlecare.com\/conditions\/bells-palsy-treatment-and-medications).\n- The loss of taste and smell can be managed by avoiding the cause (if possible), smoking cessation, treating infections or allergies, smell retraining, drinking fluids, managing chronic conditions, eating a healthy diet, taking dietary supplements, changing how you eat, and trying new foods.\n- Save on prescriptions for the loss of taste and smell with a [SingleCare prescription discount card](https:\/\/www.singlecare.com\/prescription-discount-card).\n\n## What causes the loss of taste and smell?\nOnly a few medical conditions cause the loss of taste and smell. The most common cause of loss of taste and smell is age. As people age, both taste and smell become less sensitive. Other loss of taste and smell causes include:\n\n- Upper respiratory infections, such as [cold](https:\/\/www.singlecare.com\/conditions\/common-cold-treatment-and-medications), [flu](https:\/\/www.singlecare.com\/conditions\/influenza-treatment-and-medications), or COVID-19\n- Allergic rhinitis\n- Dental problems, such as gum disease (gingivitis) or tooth decay\n- Dietary deficiencies or malnutrition\n- Head or brain injury\n- Neurological disorders, including [Alzheimer’s disease](https:\/\/www.singlecare.com\/conditions\/alzheimers-treatment-and-medications), [multiple sclerosis](https:\/\/www.singlecare.com\/conditions\/multiple-sclerosis-treatment-and-medications), [Parkinson’s disease](https:\/\/www.singlecare.com\/conditions\/parkinsons-symptoms), and Bell’s palsy\n- Diabetes\n- Autoimmune disorders, such as Sjogren syndrome\n- Head or neck surgery\n- Radiation therapy\n- Genetics\n- Some [medications](https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC6051304\/), such as [antibiotics](https:\/\/www.singlecare.com\/blog\/how-do-antibiotics-work\/), chemotherapy, [statins](https:\/\/www.singlecare.com\/drug-classes\/statins), [antihistamines](https:\/\/www.singlecare.com\/drug-classes\/antihistamines), [high blood pressure](https:\/\/www.singlecare.com\/conditions\/hypertension-treatments-and-medications) medications, and [thyroid hormones](https:\/\/www.singlecare.com\/drug-classes\/thyroid-hormones)\n- Smoking\n- Chemical exposure\n## Should I be worried about the loss of taste and smell?\nThe loss of taste and smell is not health-threatening, but it could be a sign of a serious medical condition, such as a COVID-19 infection. If both taste and smell decrease suddenly, persist for several weeks, or are accompanied by other symptoms, contact a healthcare provider for medical advice. Emergency medical care is needed if there are severe symptoms, such as mental changes, difficulty breathing, or a high fever.\n\n## How is the cause of the loss of taste and smell diagnosed?\nDiagnosing the cause of loss of taste and smell is a complex puzzle to solve. Often, there’s just one cause, but there’s a possibility that two things are going wrong, one affecting the sense of smell and another affecting the sense of taste. Although a primary care provider may start the diagnosis process, a dentist or a specialist in ear, nose, and throat disorders, called an otolaryngologist, may be needed.\n\nDiagnosis will require a complete physical exam, an exam of the head and neck, and an exam of the oral cavity. An ear, nose, and throat (ENT) specialist may look at the nasal passages for problems in the nasal cavity, such as [nasal polyps](https:\/\/www.singlecare.com\/conditions\/nasal-polyps-symptoms). This will be done with a procedure called a nasal endoscopy, which is performed with a camera attached to a flexible tube. A dentist may have to follow up on an oral exam with a complete dental exam.\n\nIn addition to the many tests that may be required, people may undergo taste or smell tests. These tests aren’t required, but they confirm and quantify the extent to which taste and smell have been compromised.\n\nTaste tests are usually just that. People taste solutions or apply paper strips or cotton swabs to various parts of the tongue to identify the taste. A clinician or the patient will fill out a rating questionnaire to determine how much of a substance is required to produce a taste response, the intensity of the sensation, and whether it’s enjoyable or awful. Using cotton swabs, a clinician can then determine what parts of the tongue are affected.\n\n[Smell tests](https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC8264728\/) accomplish the same goals. By having the patient smell various substances, the clinician can determine the minimal amount of smells that must be identified, the intensity of smells, and whether those smells are experienced as good or bad.\n\nElectrodes can measure taste and smell in less common cases. Other tests may include blood tests, urine tests, or medical imaging of the head or neck, such as a CT scan, MRI, or PET scan.\n\n**RELATED:** [Should I see an ENT or allergist?](https:\/\/www.singlecare.com\/blog\/ent-or-allergist\/)\n\n## Is the loss of taste and smell contagious?\nIf the loss of taste and smell is associated with a viral infection, such as a cold, flu, or COVID-19, other people can catch that infection. The loss of taste and smell, however, is not contagious. In some cases, the infection will resolve, but the loss of taste and smell will linger for days, weeks, or even months afterward. Once the original infection is gone, there’s no danger of contagion.\n\n## How long does the loss of taste and smell last?\nThe loss of taste and smell will last for as long as the underlying condition is causing it, sometimes longer. The loss of taste and smell is usually a temporary health problem lasting days or weeks. Some causes may result in a chronic or permanent reduction in taste and smell, particularly if nerves or the central nervous system are damaged. In those cases, smell retraining and other therapies can help improve smell, but not taste.\n\n## How to stop the loss of taste and smell\nHealthcare professionals don’t treat loss of taste, but they can [treat loss of smell](https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC8984764\/) in a limited way through smell retraining, occupational therapy, and some medications that may improve olfactory function, such as [corticosteroids](https:\/\/www.singlecare.com\/drug-classes\/corticosteroids) and [theophylline](https:\/\/www.singlecare.com\/prescription\/theophylline).\n\nThe only way health professionals treat the combined loss of taste and smell is by treating the underlying cause:\n\n- Getting rid of the loss of taste and smell when it’s due to smoking is not complicated—most people will see improvements in taste and smell when they quit smoking and avoid secondhand smoke\n- Eliminating exposure to environmental causes, such as toxins or pollution, is usually enough to improve taste and smell\n- The sense of taste and smell will usually return when the body fights off the infection that’s causing it, but the loss of taste and smell may linger for days, weeks, or longer\n- Avoiding allergens and using allergy medications can help prevent and treat allergic reactions\n- Switching to different types of medications may help with the loss of taste if a medication is the cause\n- Dietary deficiencies are treated with dietary changes and supplements\n- Dental problems are treated with oral surgery, prescription medications, and adopting good oral hygiene practices\n- Dry mouth can be treated by drinking fluids, using humidifiers, breathing steam, or using artificial saliva\n- Other medical conditions that cause the loss of taste and smell may require prescription medications or surgery\n## Living with the loss of taste and smell\nLiving with the loss of taste and smell is challenging. Much of our enjoyment in life comes from tasting and smelling foods and drinks and experiencing pleasant smells around us. The first thing people can do is try [smell retraining](https:\/\/www.enthealth.org\/be_ent_smart\/smell-retraining-therapy\/), a proven therapy that can be done at home. Smell retraining increases one’s perceptions of the sense of smell and involves sniffing the same four scents from essential oils twice per day. The nature of these essential oils is not considered important, but in the [original research](https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/lary.20101), the investigators used eucalyptus, rose, citronella (lemon), and eugenol (cloves). Other remedies involve drinking fluids to keep the oral cavity moist or trying various foods to find the most flavorful and enjoyable.\n\n**RELATED:** [How to regain taste and smell after coronavirus](https:\/\/www.singlecare.com\/blog\/news\/loss-of-taste-and-smell-coronavirus\/)\n\n## Most importantly, eat a healthy diet\nWhen there are problems with taste and smell, the first order of business is to see a healthcare professional. The problem may be treatable. If taste and smell cannot be recovered, the next task is to stay healthy. The loss of taste and smell are not considered health threats, but they could lead to health problems, such as malnutrition or weight loss if people stop eating. Eating is a primary component of quality of life, so when eating loses its appeal, people will have to purposely make sure they’re eating enough food and getting enough nutrients. Dietary supplements can help, but ask a nutritionist or other healthcare professional for medical advice on selecting the right supplements and properly using them.\n\n## What’s next? Additional resources for people with the loss of taste and smell\n### Test and diagnostics\n- [Aguesia](https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK549775\/), StatPearls (2023)\n- [Diagnosis of anosmia and hyposmia: A systematic review](https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC8264728\/), *Allergy & Rhinology* (2021)\n- [Influence of medications on smell and taste disorders](https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC6051304\/), *World Journal of Otorhinolaryngology-Head and Neck Surgery* (2018)\n- [Overview of smell and taste disorders](https:\/\/www.merckmanuals.com\/home\/ear,-nose,-and-throat-disorders\/symptoms-of-nose-and-throat-disorders\/overview-of-smell-and-taste-disorders), Merck Manual Consumer Version (2023)\n- [Taste disorders](https:\/\/www.nidcd.nih.gov\/health\/taste-disorders), NIH National Institute of Deafness and Other Communication Disorders (2023)\n### Treatments\n- [Aguesia](https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK549775\/), StatPearls (2023)\n- [Smell retraining therapy](https:\/\/www.enthealth.org\/be_ent_smart\/smell-retraining-therapy\/), ENT Health (2023)\n- [Treatment strategies for postviral olfactory dysfunction: A systematic review](https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC8984764\/), *Allergy and Asthma Proceedings* (2022)\n### Scientific studies and clinical trials\n- [Effects of olfactory training in patients with olfactory loss](https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/lary.20101), *The Laryngoscope* (2009)\n### More information on related health conditions\n- [Allergy treatments and medications](https:\/\/www.singlecare.com\/conditions\/allergy-treatment-and-medications), SingleCare (2023)\n- [Common cold treatments and medications](https:\/\/www.singlecare.com\/conditions\/common-cold-treatment-and-medications), SingleCare (2023)\n- [Influenza treatments and medications](https:\/\/www.singlecare.com\/conditions\/influenza-treatment-and-medications), SingleCare (2020)\n\nMedically reviewed by [Josephine Bawab, Pharm.D.](https:\/\/www.singlecare.com\/blog\/author\/josephine-bawab-pharm-d\/)\n\nLicensed Pharmacist\n\nJosephine Bawab, Pharm.D., graduated from Virginia Commonwealth University School of Pharmacy. She began working in community pharmacy in 2012 and has worked for multiple chain pharmacies since then. She is passionate about helping patients and precepting students. She currently works and resides in Virginia, where she is just a few minutes away from the beach.\n\n...\n\nRead more\n\n#### Related Conditions\n- [Allergy Treatments and Medications](https:\/\/www.singlecare.com\/conditions\/allergy-treatment-and-medications)\n- [Gingivitis Treatments and Medications](https:\/\/www.singlecare.com\/conditions\/gingivitis-treatment-and-medications)\n- [Hyperthyroidism treatments and medications](https:\/\/www.singlecare.com\/conditions\/hypethyroidism-treatment-and-medications)\n- [Diabetes symptoms](https:\/\/www.singlecare.com\/conditions\/diabetes-symptoms)\n- [Bell's Palsy Treatments and Medications](https:\/\/www.singlecare.com\/conditions\/bells-palsy-treatment-and-medications)\n- [Cold causes](https:\/\/www.singlecare.com\/conditions\/cold-causes)\n- [Flu causes](https:\/\/www.singlecare.com\/conditions\/flu-causes)\n- [Alzheimer’s Treatment and Medications](https:\/\/www.singlecare.com\/conditions\/alzheimers-treatment-and-medications)\n- 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For additional information, including an up-to-date list of providers, or assistance with any issue related to program membership, please contact member support any time at www.singlecare.com, or by calling toll-free 844-234-3057, 24 hours, 7 days a week (except major holidays). Pharmacy names, logos, brands, and other trademarks are the property of their respective owners.\n\nBlog articles are not medical advice. They are intended for general informational purposes and are not meant to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. If you think you may have a medical emergency, immediately call your physician or dial 911.\n\n- [![How to Identify a Safe Online Pharmacy](https:\/\/www.singlecare.com\/content\/images\/footer\/safe-pharmacy-logo.jpg)](https:\/\/www.safe.pharmacy\/buying-safely\/)\n- ![Better Business Bureau Accredited Corporation](https:\/\/www.singlecare.com\/content\/images\/footer\/BBB-logo.jpg)\n\n- [![Mental Health America logo](https:\/\/www.singlecare.com\/content\/images\/footer\/logos-partner-mha.svg)](https:\/\/www.mhanational.org\/about)\n- [![American Heart Association logo](https:\/\/www.singlecare.com\/content\/images\/footer\/logos-partner-heart.svg)](https:\/\/www.heart.org\/en\/about-us)\n\n- [Español](https:\/\/www.singlecare.com\/es)\n- [Terms & Conditions](https:\/\/www.singlecare.com\/terms-and-conditions)\n- [Your Privacy Rights](https:\/\/www.singlecare.com\/privacy-policy)\n- [Your Privacy Choices]()\n- [WA Consumer Health Privacy Policy](https:\/\/www.singlecare.com\/washington-consumer-health-privacy-policy)\n\n© 2026 [SingleCare](https:\/\/www.singlecare.com\/) Administrators. All rights reserved\n\n[![SingleCare](https:\/\/www.singlecare.com\/content\/images\/header\/single-care-logo1.svg)](https:\/\/www.singlecare.com\/)\n\n[![SingleCare](https:\/\/www.singlecare.com\/content\/images\/header\/single-care-logo1.svg)](https:\/\/www.singlecare.com\/)\n\n© 2026 [SingleCare](https:\/\/www.singlecare.com\/) Administrators. All rights reserved","attrs_readable_markdown":"## Overview: What does the loss of taste and smell feel like?\nTaste and smell are closely related senses, but they are very different. Taste buds on the tongue sense what we taste—sweet, sour, salty, bitter, and savory—and the brain processes these sensations in one region. Smell receptors in the nose detect what we smell, and another part of the brain processes these sensations. The sense of smell can be affected by some medical conditions. Other medical conditions can affect the sense of taste. Most of what we believe we “taste” is what we smell, so when people have a reduced sense of smell (hyposmia) or a complete loss of smell (anosmia), they typically feel they’ve lost both taste and smell. However, that’s not true. Only [5%](https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC7693910\/) of people who say they’ve lost their taste and smell have a taste disorder—all the rest only have smell disorders. About [1 in 20 people](https:\/\/link.springer.com\/article\/10.1007\/s00415-010-5763-5) have a reduced sense of taste (hypogeusia) or completely lose their taste (ageusia). In those cases, they can still recognize flavors, like steak, but don’t taste sugar or salt. It’s less common for people to lose both their taste and smell.\n\n## What causes the loss of taste and smell?\nOnly a few medical conditions cause the loss of taste and smell. The most common cause of loss of taste and smell is age. As people age, both taste and smell become less sensitive. Other loss of taste and smell causes include:\n\n- Upper respiratory infections, such as [cold](https:\/\/www.singlecare.com\/conditions\/common-cold-treatment-and-medications), [flu](https:\/\/www.singlecare.com\/conditions\/influenza-treatment-and-medications), or COVID-19\n- Allergic rhinitis\n- Dental problems, such as gum disease (gingivitis) or tooth decay\n- Dietary deficiencies or malnutrition\n- Head or brain injury\n- Neurological disorders, including [Alzheimer’s disease](https:\/\/www.singlecare.com\/conditions\/alzheimers-treatment-and-medications), [multiple sclerosis](https:\/\/www.singlecare.com\/conditions\/multiple-sclerosis-treatment-and-medications), [Parkinson’s disease](https:\/\/www.singlecare.com\/conditions\/parkinsons-symptoms), and Bell’s palsy\n- Diabetes\n- Autoimmune disorders, such as Sjogren syndrome\n- Head or neck surgery\n- Radiation therapy\n- Genetics\n- Some [medications](https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC6051304\/), such as [antibiotics](https:\/\/www.singlecare.com\/blog\/how-do-antibiotics-work\/), chemotherapy, [statins](https:\/\/www.singlecare.com\/drug-classes\/statins), [antihistamines](https:\/\/www.singlecare.com\/drug-classes\/antihistamines), [high blood pressure](https:\/\/www.singlecare.com\/conditions\/hypertension-treatments-and-medications) medications, and [thyroid hormones](https:\/\/www.singlecare.com\/drug-classes\/thyroid-hormones)\n- Smoking\n- Chemical exposure\n## Should I be worried about the loss of taste and smell?\nThe loss of taste and smell is not health-threatening, but it could be a sign of a serious medical condition, such as a COVID-19 infection. If both taste and smell decrease suddenly, persist for several weeks, or are accompanied by other symptoms, contact a healthcare provider for medical advice. Emergency medical care is needed if there are severe symptoms, such as mental changes, difficulty breathing, or a high fever.\n\n## How is the cause of the loss of taste and smell diagnosed?\nDiagnosing the cause of loss of taste and smell is a complex puzzle to solve. Often, there’s just one cause, but there’s a possibility that two things are going wrong, one affecting the sense of smell and another affecting the sense of taste. Although a primary care provider may start the diagnosis process, a dentist or a specialist in ear, nose, and throat disorders, called an otolaryngologist, may be needed.\n\nDiagnosis will require a complete physical exam, an exam of the head and neck, and an exam of the oral cavity. An ear, nose, and throat (ENT) specialist may look at the nasal passages for problems in the nasal cavity, such as [nasal polyps](https:\/\/www.singlecare.com\/conditions\/nasal-polyps-symptoms). This will be done with a procedure called a nasal endoscopy, which is performed with a camera attached to a flexible tube. A dentist may have to follow up on an oral exam with a complete dental exam.\n\nIn addition to the many tests that may be required, people may undergo taste or smell tests. These tests aren’t required, but they confirm and quantify the extent to which taste and smell have been compromised.\n\nTaste tests are usually just that. People taste solutions or apply paper strips or cotton swabs to various parts of the tongue to identify the taste. A clinician or the patient will fill out a rating questionnaire to determine how much of a substance is required to produce a taste response, the intensity of the sensation, and whether it’s enjoyable or awful. Using cotton swabs, a clinician can then determine what parts of the tongue are affected.\n\n[Smell tests](https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC8264728\/) accomplish the same goals. By having the patient smell various substances, the clinician can determine the minimal amount of smells that must be identified, the intensity of smells, and whether those smells are experienced as good or bad.\n\nElectrodes can measure taste and smell in less common cases. Other tests may include blood tests, urine tests, or medical imaging of the head or neck, such as a CT scan, MRI, or PET scan.\n\n**RELATED:** [Should I see an ENT or allergist?](https:\/\/www.singlecare.com\/blog\/ent-or-allergist\/)\n\n## Is the loss of taste and smell contagious?\nIf the loss of taste and smell is associated with a viral infection, such as a cold, flu, or COVID-19, other people can catch that infection. The loss of taste and smell, however, is not contagious. In some cases, the infection will resolve, but the loss of taste and smell will linger for days, weeks, or even months afterward. Once the original infection is gone, there’s no danger of contagion.\n\n## How long does the loss of taste and smell last?\nThe loss of taste and smell will last for as long as the underlying condition is causing it, sometimes longer. The loss of taste and smell is usually a temporary health problem lasting days or weeks. Some causes may result in a chronic or permanent reduction in taste and smell, particularly if nerves or the central nervous system are damaged. In those cases, smell retraining and other therapies can help improve smell, but not taste.\n\n## How to stop the loss of taste and smell\nHealthcare professionals don’t treat loss of taste, but they can [treat loss of smell](https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC8984764\/) in a limited way through smell retraining, occupational therapy, and some medications that may improve olfactory function, such as [corticosteroids](https:\/\/www.singlecare.com\/drug-classes\/corticosteroids) and [theophylline](https:\/\/www.singlecare.com\/prescription\/theophylline).\n\nThe only way health professionals treat the combined loss of taste and smell is by treating the underlying cause:\n\n- Getting rid of the loss of taste and smell when it’s due to smoking is not complicated—most people will see improvements in taste and smell when they quit smoking and avoid secondhand smoke\n- Eliminating exposure to environmental causes, such as toxins or pollution, is usually enough to improve taste and smell\n- The sense of taste and smell will usually return when the body fights off the infection that’s causing it, but the loss of taste and smell may linger for days, weeks, or longer\n- Avoiding allergens and using allergy medications can help prevent and treat allergic reactions\n- Switching to different types of medications may help with the loss of taste if a medication is the cause\n- Dietary deficiencies are treated with dietary changes and supplements\n- Dental problems are treated with oral surgery, prescription medications, and adopting good oral hygiene practices\n- Dry mouth can be treated by drinking fluids, using humidifiers, breathing steam, or using artificial saliva\n- Other medical conditions that cause the loss of taste and smell may require prescription medications or surgery\n## Living with the loss of taste and smell\nLiving with the loss of taste and smell is challenging. Much of our enjoyment in life comes from tasting and smelling foods and drinks and experiencing pleasant smells around us. The first thing people can do is try [smell retraining](https:\/\/www.enthealth.org\/be_ent_smart\/smell-retraining-therapy\/), a proven therapy that can be done at home. Smell retraining increases one’s perceptions of the sense of smell and involves sniffing the same four scents from essential oils twice per day. The nature of these essential oils is not considered important, but in the [original research](https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/lary.20101), the investigators used eucalyptus, rose, citronella (lemon), and eugenol (cloves). Other remedies involve drinking fluids to keep the oral cavity moist or trying various foods to find the most flavorful and enjoyable.\n\n**RELATED:** [How to regain taste and smell after coronavirus](https:\/\/www.singlecare.com\/blog\/news\/loss-of-taste-and-smell-coronavirus\/)\n\n## What’s next? Additional resources for people with the loss of taste and smell\n### Test and diagnostics\n- [Aguesia](https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK549775\/), StatPearls (2023)\n- [Diagnosis of anosmia and hyposmia: A systematic review](https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC8264728\/), *Allergy & Rhinology* (2021)\n- [Influence of medications on smell and taste disorders](https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC6051304\/), *World Journal of Otorhinolaryngology-Head and Neck Surgery* (2018)\n- [Overview of smell and taste disorders](https:\/\/www.merckmanuals.com\/home\/ear,-nose,-and-throat-disorders\/symptoms-of-nose-and-throat-disorders\/overview-of-smell-and-taste-disorders), Merck Manual Consumer Version (2023)\n- [Taste disorders](https:\/\/www.nidcd.nih.gov\/health\/taste-disorders), NIH National Institute of Deafness and Other Communication Disorders (2023)\n### Treatments\n- [Aguesia](https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK549775\/), StatPearls (2023)\n- [Smell retraining therapy](https:\/\/www.enthealth.org\/be_ent_smart\/smell-retraining-therapy\/), ENT Health (2023)\n- [Treatment strategies for postviral olfactory dysfunction: A systematic review](https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC8984764\/), *Allergy and Asthma Proceedings* (2022)\n### Scientific studies and clinical trials\n- [Effects of olfactory training in patients with olfactory loss](https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/lary.20101), *The Laryngoscope* (2009)\n### More information on related health conditions\n- [Allergy treatments and medications](https:\/\/www.singlecare.com\/conditions\/allergy-treatment-and-medications), SingleCare (2023)\n- [Common cold treatments and medications](https:\/\/www.singlecare.com\/conditions\/common-cold-treatment-and-medications), SingleCare (2023)\n- [Influenza treatments and medications](https:\/\/www.singlecare.com\/conditions\/influenza-treatment-and-medications), SingleCare (2020)","meta_canonical":null}

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Boilerpipe Text	Overview: What does the loss of taste and smell feel like? Taste and smell are closely related senses, but they are very different. Taste buds on the tongue sense what we taste—sweet, sour, salty, bitter, and savory—and the brain processes these sensations in one region. Smell receptors in the nose detect what we smell, and another part of the brain processes these sensations. The sense of smell can be affected by some medical conditions. Other medical conditions can affect the sense of taste. Most of what we believe we “taste” is what we smell, so when people have a reduced sense of smell (hyposmia) or a complete loss of smell (anosmia), they typically feel they’ve lost both taste and smell. However, that’s not true. Only 5% of people who say they’ve lost their taste and smell have a taste disorder—all the rest only have smell disorders. About 1 in 20 people have a reduced sense of taste (hypogeusia) or completely lose their taste (ageusia). In those cases, they can still recognize flavors, like steak, but don’t taste sugar or salt. It’s less common for people to lose both their taste and smell. What causes the loss of taste and smell? Only a few medical conditions cause the loss of taste and smell. The most common cause of loss of taste and smell is age. As people age, both taste and smell become less sensitive. Other loss of taste and smell causes include: Upper respiratory infections, such as cold , flu , or COVID-19 Allergic rhinitis Dental problems, such as gum disease (gingivitis) or tooth decay Dietary deficiencies or malnutrition Head or brain injury Neurological disorders, including Alzheimer’s disease , multiple sclerosis , Parkinson’s disease , and Bell’s palsy Diabetes Autoimmune disorders, such as Sjogren syndrome Head or neck surgery Radiation therapy Genetics Some medications , such as antibiotics , chemotherapy, statins , antihistamines , high blood pressure medications, and thyroid hormones Smoking Chemical exposure Should I be worried about the loss of taste and smell? The loss of taste and smell is not health-threatening, but it could be a sign of a serious medical condition, such as a COVID-19 infection. If both taste and smell decrease suddenly, persist for several weeks, or are accompanied by other symptoms, contact a healthcare provider for medical advice. Emergency medical care is needed if there are severe symptoms, such as mental changes, difficulty breathing, or a high fever. How is the cause of the loss of taste and smell diagnosed? Diagnosing the cause of loss of taste and smell is a complex puzzle to solve. Often, there’s just one cause, but there’s a possibility that two things are going wrong, one affecting the sense of smell and another affecting the sense of taste. Although a primary care provider may start the diagnosis process, a dentist or a specialist in ear, nose, and throat disorders, called an otolaryngologist, may be needed. Diagnosis will require a complete physical exam, an exam of the head and neck, and an exam of the oral cavity. An ear, nose, and throat (ENT) specialist may look at the nasal passages for problems in the nasal cavity, such as nasal polyps . This will be done with a procedure called a nasal endoscopy, which is performed with a camera attached to a flexible tube. A dentist may have to follow up on an oral exam with a complete dental exam. In addition to the many tests that may be required, people may undergo taste or smell tests. These tests aren’t required, but they confirm and quantify the extent to which taste and smell have been compromised. Taste tests are usually just that. People taste solutions or apply paper strips or cotton swabs to various parts of the tongue to identify the taste. A clinician or the patient will fill out a rating questionnaire to determine how much of a substance is required to produce a taste response, the intensity of the sensation, and whether it’s enjoyable or awful. Using cotton swabs, a clinician can then determine what parts of the tongue are affected. Smell tests accomplish the same goals. By having the patient smell various substances, the clinician can determine the minimal amount of smells that must be identified, the intensity of smells, and whether those smells are experienced as good or bad. Electrodes can measure taste and smell in less common cases. Other tests may include blood tests, urine tests, or medical imaging of the head or neck, such as a CT scan, MRI, or PET scan. RELATED: Should I see an ENT or allergist? Is the loss of taste and smell contagious? If the loss of taste and smell is associated with a viral infection, such as a cold, flu, or COVID-19, other people can catch that infection. The loss of taste and smell, however, is not contagious. In some cases, the infection will resolve, but the loss of taste and smell will linger for days, weeks, or even months afterward. Once the original infection is gone, there’s no danger of contagion. How long does the loss of taste and smell last? The loss of taste and smell will last for as long as the underlying condition is causing it, sometimes longer. The loss of taste and smell is usually a temporary health problem lasting days or weeks. Some causes may result in a chronic or permanent reduction in taste and smell, particularly if nerves or the central nervous system are damaged. In those cases, smell retraining and other therapies can help improve smell, but not taste. How to stop the loss of taste and smell Healthcare professionals don’t treat loss of taste, but they can treat loss of smell in a limited way through smell retraining, occupational therapy, and some medications that may improve olfactory function, such as corticosteroids and theophylline . The only way health professionals treat the combined loss of taste and smell is by treating the underlying cause: Getting rid of the loss of taste and smell when it’s due to smoking is not complicated—most people will see improvements in taste and smell when they quit smoking and avoid secondhand smoke Eliminating exposure to environmental causes, such as toxins or pollution, is usually enough to improve taste and smell The sense of taste and smell will usually return when the body fights off the infection that’s causing it, but the loss of taste and smell may linger for days, weeks, or longer Avoiding allergens and using allergy medications can help prevent and treat allergic reactions Switching to different types of medications may help with the loss of taste if a medication is the cause Dietary deficiencies are treated with dietary changes and supplements Dental problems are treated with oral surgery, prescription medications, and adopting good oral hygiene practices Dry mouth can be treated by drinking fluids, using humidifiers, breathing steam, or using artificial saliva Other medical conditions that cause the loss of taste and smell may require prescription medications or surgery Living with the loss of taste and smell Living with the loss of taste and smell is challenging. Much of our enjoyment in life comes from tasting and smelling foods and drinks and experiencing pleasant smells around us. The first thing people can do is try smell retraining , a proven therapy that can be done at home. Smell retraining increases one’s perceptions of the sense of smell and involves sniffing the same four scents from essential oils twice per day. The nature of these essential oils is not considered important, but in the original research , the investigators used eucalyptus, rose, citronella (lemon), and eugenol (cloves). Other remedies involve drinking fluids to keep the oral cavity moist or trying various foods to find the most flavorful and enjoyable. RELATED: How to regain taste and smell after coronavirus What’s next? Additional resources for people with the loss of taste and smell Test and diagnostics Aguesia , StatPearls (2023) Diagnosis of anosmia and hyposmia: A systematic review , Allergy & Rhinology (2021) Influence of medications on smell and taste disorders , World Journal of Otorhinolaryngology-Head and Neck Surgery (2018) Overview of smell and taste disorders , Merck Manual Consumer Version (2023) Taste disorders , NIH National Institute of Deafness and Other Communication Disorders (2023) Treatments Aguesia , StatPearls (2023) Smell retraining therapy , ENT Health (2023) Treatment strategies for postviral olfactory dysfunction: A systematic review , Allergy and Asthma Proceedings (2022) Scientific studies and clinical trials Effects of olfactory training in patients with olfactory loss , The Laryngoscope (2009) More information on related health conditions Allergy treatments and medications , SingleCare (2023) Common cold treatments and medications , SingleCare (2023) Influenza treatments and medications , SingleCare (2020)
Markdown	- [![SingleCare](https://www.singlecare.com/content/images/header/single-care-logo1.svg)](https://www.singlecare.com/) - [Skip to content](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#content) - [Sign up]() - [Log in](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes) Not a member? Sign up free\! - [How it works](https://www.singlecare.com/how-it-works) - Get the app Scan the code with your camera phone to download the free SingleCare app Text yourself a link - [![](https://www.singlecare.com/content/images/header/menuIcon.svg)](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#hamburgerMenuContainer) - [Home](https://www.singlecare.com/) - \>[Causes Directory](https://www.singlecare.com/conditions-causes) - \>[Loss of taste and smell causes](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes) # What causes the loss of taste and smell? Related conditions and treatments Medically reviewed by [Josephine Bawab, Pharm.D.](https://www.singlecare.com/blog/author/josephine-bawab-pharm-d/) Licensed Pharmacist Updated Jun 10, 2024 • Published Dec 11, 2023 Fact Checked In this article: - [Overview](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#overview-what-does-the-loss-of-taste-and-smell-feel-like) - [Key takeaways](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#keyTakeawaysSection) - [Causes](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#what-causes-the-loss-of-taste-and-smell) - [When to see a doctor](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#should-i-be-worried-about-the-loss-of-taste-and-smell) - [Diagnosis](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#how-is-the-cause-of-the-loss-of-taste-and-smell-diagnosed) - [Transmission](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#is-the-loss-of-taste-and-smell-contagious) - [Timeline](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#how-long-does-the-loss-of-taste-and-smell-last) - [Treatment](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#how-to-stop-the-loss-of-taste-and-smell) - [Managing everyday life](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#living-with-the-loss-of-taste-and-smell) ![](https://www.singlecare.com/content/images/icons/union.svg) In this article ![](https://www.singlecare.com/content/images/icons/dropDownArrow.svg) - [Overview](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#overview-what-does-the-loss-of-taste-and-smell-feel-like) - [Key takeaways](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#keyTakeawaysSection) - [Causes](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#what-causes-the-loss-of-taste-and-smell) - [When to see a doctor](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#should-i-be-worried-about-the-loss-of-taste-and-smell) - [Diagnosis](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#how-is-the-cause-of-the-loss-of-taste-and-smell-diagnosed) - [Transmission](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#is-the-loss-of-taste-and-smell-contagious) - [Timeline](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#how-long-does-the-loss-of-taste-and-smell-last) - [Treatment](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#how-to-stop-the-loss-of-taste-and-smell) - [Managing everyday life](https://www.singlecare.com/conditions/loss-of-taste-and-smell-causes#living-with-the-loss-of-taste-and-smell) ## Overview: What does the loss of taste and smell feel like? Taste and smell are closely related senses, but they are very different. Taste buds on the tongue sense what we taste—sweet, sour, salty, bitter, and savory—and the brain processes these sensations in one region. Smell receptors in the nose detect what we smell, and another part of the brain processes these sensations. The sense of smell can be affected by some medical conditions. Other medical conditions can affect the sense of taste. Most of what we believe we “taste” is what we smell, so when people have a reduced sense of smell (hyposmia) or a complete loss of smell (anosmia), they typically feel they’ve lost both taste and smell. However, that’s not true. Only [5%](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7693910/) of people who say they’ve lost their taste and smell have a taste disorder—all the rest only have smell disorders. About [1 in 20 people](https://link.springer.com/article/10.1007/s00415-010-5763-5) have a reduced sense of taste (hypogeusia) or completely lose their taste (ageusia). In those cases, they can still recognize flavors, like steak, but don’t taste sugar or salt. It’s less common for people to lose both their taste and smell. ## Key takeaways: - The loss of taste and smell is a common symptom that may be caused by aging, infections, allergies, dietary deficiencies, poor oral hygiene, dental problems, smoking, environmental causes, nerve injury, neurological disorders, autoimmune disorders, and medication side effects. - Typically, the loss of taste and smell does not require immediate medical attention unless there are other serious symptoms present. - The loss of taste and smell generally does not require treatment, but the underlying cause may require treatment. It may or may not resolve with or without treatment, depending on the cause. - Treatments for the loss of taste and smell vary by cause, but treatments for the loss of smell may include occupational therapy, smell retraining, or prescribed medications to help improve the ability to smell. Read more about treatments for [allergies](https://www.singlecare.com/conditions/allergy-treatment-and-medications), [gingivitis](https://www.singlecare.com/conditions/gingivitis-treatment-and-medications), [hypothyroidism](https://www.singlecare.com/conditions/hypothyroidism-treatment-and-medications), [diabetes](https://www.singlecare.com/conditions/diabetes-treatment-and-medications), and [Bell’s palsy](https://www.singlecare.com/conditions/bells-palsy-treatment-and-medications). - The loss of taste and smell can be managed by avoiding the cause (if possible), smoking cessation, treating infections or allergies, smell retraining, drinking fluids, managing chronic conditions, eating a healthy diet, taking dietary supplements, changing how you eat, and trying new foods. - Save on prescriptions for the loss of taste and smell with a [SingleCare prescription discount card](https://www.singlecare.com/prescription-discount-card). ## What causes the loss of taste and smell? Only a few medical conditions cause the loss of taste and smell. The most common cause of loss of taste and smell is age. As people age, both taste and smell become less sensitive. Other loss of taste and smell causes include: - Upper respiratory infections, such as [cold](https://www.singlecare.com/conditions/common-cold-treatment-and-medications), [flu](https://www.singlecare.com/conditions/influenza-treatment-and-medications), or COVID-19 - Allergic rhinitis - Dental problems, such as gum disease (gingivitis) or tooth decay - Dietary deficiencies or malnutrition - Head or brain injury - Neurological disorders, including [Alzheimer’s disease](https://www.singlecare.com/conditions/alzheimers-treatment-and-medications), [multiple sclerosis](https://www.singlecare.com/conditions/multiple-sclerosis-treatment-and-medications), [Parkinson’s disease](https://www.singlecare.com/conditions/parkinsons-symptoms), and Bell’s palsy - Diabetes - Autoimmune disorders, such as Sjogren syndrome - Head or neck surgery - Radiation therapy - Genetics - Some [medications](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6051304/), such as [antibiotics](https://www.singlecare.com/blog/how-do-antibiotics-work/), chemotherapy, [statins](https://www.singlecare.com/drug-classes/statins), [antihistamines](https://www.singlecare.com/drug-classes/antihistamines), [high blood pressure](https://www.singlecare.com/conditions/hypertension-treatments-and-medications) medications, and [thyroid hormones](https://www.singlecare.com/drug-classes/thyroid-hormones) - Smoking - Chemical exposure ## Should I be worried about the loss of taste and smell? The loss of taste and smell is not health-threatening, but it could be a sign of a serious medical condition, such as a COVID-19 infection. If both taste and smell decrease suddenly, persist for several weeks, or are accompanied by other symptoms, contact a healthcare provider for medical advice. Emergency medical care is needed if there are severe symptoms, such as mental changes, difficulty breathing, or a high fever. ## How is the cause of the loss of taste and smell diagnosed? Diagnosing the cause of loss of taste and smell is a complex puzzle to solve. Often, there’s just one cause, but there’s a possibility that two things are going wrong, one affecting the sense of smell and another affecting the sense of taste. Although a primary care provider may start the diagnosis process, a dentist or a specialist in ear, nose, and throat disorders, called an otolaryngologist, may be needed. Diagnosis will require a complete physical exam, an exam of the head and neck, and an exam of the oral cavity. An ear, nose, and throat (ENT) specialist may look at the nasal passages for problems in the nasal cavity, such as [nasal polyps](https://www.singlecare.com/conditions/nasal-polyps-symptoms). This will be done with a procedure called a nasal endoscopy, which is performed with a camera attached to a flexible tube. A dentist may have to follow up on an oral exam with a complete dental exam. In addition to the many tests that may be required, people may undergo taste or smell tests. These tests aren’t required, but they confirm and quantify the extent to which taste and smell have been compromised. Taste tests are usually just that. People taste solutions or apply paper strips or cotton swabs to various parts of the tongue to identify the taste. A clinician or the patient will fill out a rating questionnaire to determine how much of a substance is required to produce a taste response, the intensity of the sensation, and whether it’s enjoyable or awful. Using cotton swabs, a clinician can then determine what parts of the tongue are affected. [Smell tests](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8264728/) accomplish the same goals. By having the patient smell various substances, the clinician can determine the minimal amount of smells that must be identified, the intensity of smells, and whether those smells are experienced as good or bad. Electrodes can measure taste and smell in less common cases. Other tests may include blood tests, urine tests, or medical imaging of the head or neck, such as a CT scan, MRI, or PET scan. RELATED: [Should I see an ENT or allergist?](https://www.singlecare.com/blog/ent-or-allergist/) ## Is the loss of taste and smell contagious? If the loss of taste and smell is associated with a viral infection, such as a cold, flu, or COVID-19, other people can catch that infection. The loss of taste and smell, however, is not contagious. In some cases, the infection will resolve, but the loss of taste and smell will linger for days, weeks, or even months afterward. Once the original infection is gone, there’s no danger of contagion. ## How long does the loss of taste and smell last? The loss of taste and smell will last for as long as the underlying condition is causing it, sometimes longer. The loss of taste and smell is usually a temporary health problem lasting days or weeks. Some causes may result in a chronic or permanent reduction in taste and smell, particularly if nerves or the central nervous system are damaged. In those cases, smell retraining and other therapies can help improve smell, but not taste. ## How to stop the loss of taste and smell Healthcare professionals don’t treat loss of taste, but they can [treat loss of smell](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8984764/) in a limited way through smell retraining, occupational therapy, and some medications that may improve olfactory function, such as [corticosteroids](https://www.singlecare.com/drug-classes/corticosteroids) and [theophylline](https://www.singlecare.com/prescription/theophylline). The only way health professionals treat the combined loss of taste and smell is by treating the underlying cause: - Getting rid of the loss of taste and smell when it’s due to smoking is not complicated—most people will see improvements in taste and smell when they quit smoking and avoid secondhand smoke - Eliminating exposure to environmental causes, such as toxins or pollution, is usually enough to improve taste and smell - The sense of taste and smell will usually return when the body fights off the infection that’s causing it, but the loss of taste and smell may linger for days, weeks, or longer - Avoiding allergens and using allergy medications can help prevent and treat allergic reactions - Switching to different types of medications may help with the loss of taste if a medication is the cause - Dietary deficiencies are treated with dietary changes and supplements - Dental problems are treated with oral surgery, prescription medications, and adopting good oral hygiene practices - Dry mouth can be treated by drinking fluids, using humidifiers, breathing steam, or using artificial saliva - Other medical conditions that cause the loss of taste and smell may require prescription medications or surgery ## Living with the loss of taste and smell Living with the loss of taste and smell is challenging. Much of our enjoyment in life comes from tasting and smelling foods and drinks and experiencing pleasant smells around us. The first thing people can do is try [smell retraining](https://www.enthealth.org/be_ent_smart/smell-retraining-therapy/), a proven therapy that can be done at home. Smell retraining increases one’s perceptions of the sense of smell and involves sniffing the same four scents from essential oils twice per day. The nature of these essential oils is not considered important, but in the [original research](https://onlinelibrary.wiley.com/doi/10.1002/lary.20101), the investigators used eucalyptus, rose, citronella (lemon), and eugenol (cloves). Other remedies involve drinking fluids to keep the oral cavity moist or trying various foods to find the most flavorful and enjoyable. RELATED: [How to regain taste and smell after coronavirus](https://www.singlecare.com/blog/news/loss-of-taste-and-smell-coronavirus/) ## Most importantly, eat a healthy diet When there are problems with taste and smell, the first order of business is to see a healthcare professional. The problem may be treatable. If taste and smell cannot be recovered, the next task is to stay healthy. The loss of taste and smell are not considered health threats, but they could lead to health problems, such as malnutrition or weight loss if people stop eating. Eating is a primary component of quality of life, so when eating loses its appeal, people will have to purposely make sure they’re eating enough food and getting enough nutrients. Dietary supplements can help, but ask a nutritionist or other healthcare professional for medical advice on selecting the right supplements and properly using them. ## What’s next? Additional resources for people with the loss of taste and smell ### Test and diagnostics - [Aguesia](https://www.ncbi.nlm.nih.gov/books/NBK549775/), StatPearls (2023) - [Diagnosis of anosmia and hyposmia: A systematic review](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8264728/), Allergy & Rhinology (2021) - [Influence of medications on smell and taste disorders](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6051304/), World Journal of Otorhinolaryngology-Head and Neck Surgery (2018) - [Overview of smell and taste disorders](https://www.merckmanuals.com/home/ear,-nose,-and-throat-disorders/symptoms-of-nose-and-throat-disorders/overview-of-smell-and-taste-disorders), Merck Manual Consumer Version (2023) - [Taste disorders](https://www.nidcd.nih.gov/health/taste-disorders), NIH National Institute of Deafness and Other Communication Disorders (2023) ### Treatments - [Aguesia](https://www.ncbi.nlm.nih.gov/books/NBK549775/), StatPearls (2023) - [Smell retraining therapy](https://www.enthealth.org/be_ent_smart/smell-retraining-therapy/), ENT Health (2023) - [Treatment strategies for postviral olfactory dysfunction: A systematic review](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8984764/), Allergy and Asthma Proceedings (2022) ### Scientific studies and clinical trials - [Effects of olfactory training in patients with olfactory loss](https://onlinelibrary.wiley.com/doi/10.1002/lary.20101), The Laryngoscope (2009) ### More information on related health conditions - [Allergy treatments and medications](https://www.singlecare.com/conditions/allergy-treatment-and-medications), SingleCare (2023) - [Common cold treatments and medications](https://www.singlecare.com/conditions/common-cold-treatment-and-medications), SingleCare (2023) - [Influenza treatments and medications](https://www.singlecare.com/conditions/influenza-treatment-and-medications), SingleCare (2020) Medically reviewed by [Josephine Bawab, Pharm.D.](https://www.singlecare.com/blog/author/josephine-bawab-pharm-d/) Licensed Pharmacist Josephine Bawab, Pharm.D., graduated from Virginia Commonwealth University School of Pharmacy. She began working in community pharmacy in 2012 and has worked for multiple chain pharmacies since then. She is passionate about helping patients and precepting students. She currently works and resides in Virginia, where she is just a few minutes away from the beach. ... Read more #### Related Conditions - [Allergy Treatments and Medications](https://www.singlecare.com/conditions/allergy-treatment-and-medications) - [Gingivitis Treatments and Medications](https://www.singlecare.com/conditions/gingivitis-treatment-and-medications) - [Hyperthyroidism treatments and medications](https://www.singlecare.com/conditions/hypethyroidism-treatment-and-medications) - [Diabetes symptoms](https://www.singlecare.com/conditions/diabetes-symptoms) - [Bell's Palsy Treatments and Medications](https://www.singlecare.com/conditions/bells-palsy-treatment-and-medications) - [Cold causes](https://www.singlecare.com/conditions/cold-causes) - [Flu causes](https://www.singlecare.com/conditions/flu-causes) - [Alzheimer’s Treatment and Medications](https://www.singlecare.com/conditions/alzheimers-treatment-and-medications) - [Multiple sclerosis symptoms](https://www.singlecare.com/conditions/ms-symptoms) - [Parkinson's symptoms](https://www.singlecare.com/conditions/parkinsons-symptoms) - 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Readable Markdown	## Overview: What does the loss of taste and smell feel like? Taste and smell are closely related senses, but they are very different. Taste buds on the tongue sense what we taste—sweet, sour, salty, bitter, and savory—and the brain processes these sensations in one region. Smell receptors in the nose detect what we smell, and another part of the brain processes these sensations. The sense of smell can be affected by some medical conditions. Other medical conditions can affect the sense of taste. Most of what we believe we “taste” is what we smell, so when people have a reduced sense of smell (hyposmia) or a complete loss of smell (anosmia), they typically feel they’ve lost both taste and smell. However, that’s not true. Only [5%](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7693910/) of people who say they’ve lost their taste and smell have a taste disorder—all the rest only have smell disorders. About [1 in 20 people](https://link.springer.com/article/10.1007/s00415-010-5763-5) have a reduced sense of taste (hypogeusia) or completely lose their taste (ageusia). In those cases, they can still recognize flavors, like steak, but don’t taste sugar or salt. It’s less common for people to lose both their taste and smell. ## What causes the loss of taste and smell? Only a few medical conditions cause the loss of taste and smell. The most common cause of loss of taste and smell is age. As people age, both taste and smell become less sensitive. Other loss of taste and smell causes include: - Upper respiratory infections, such as [cold](https://www.singlecare.com/conditions/common-cold-treatment-and-medications), [flu](https://www.singlecare.com/conditions/influenza-treatment-and-medications), or COVID-19 - Allergic rhinitis - Dental problems, such as gum disease (gingivitis) or tooth decay - Dietary deficiencies or malnutrition - Head or brain injury - Neurological disorders, including [Alzheimer’s disease](https://www.singlecare.com/conditions/alzheimers-treatment-and-medications), [multiple sclerosis](https://www.singlecare.com/conditions/multiple-sclerosis-treatment-and-medications), [Parkinson’s disease](https://www.singlecare.com/conditions/parkinsons-symptoms), and Bell’s palsy - Diabetes - Autoimmune disorders, such as Sjogren syndrome - Head or neck surgery - Radiation therapy - Genetics - Some [medications](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6051304/), such as [antibiotics](https://www.singlecare.com/blog/how-do-antibiotics-work/), chemotherapy, [statins](https://www.singlecare.com/drug-classes/statins), [antihistamines](https://www.singlecare.com/drug-classes/antihistamines), [high blood pressure](https://www.singlecare.com/conditions/hypertension-treatments-and-medications) medications, and [thyroid hormones](https://www.singlecare.com/drug-classes/thyroid-hormones) - Smoking - Chemical exposure ## Should I be worried about the loss of taste and smell? The loss of taste and smell is not health-threatening, but it could be a sign of a serious medical condition, such as a COVID-19 infection. If both taste and smell decrease suddenly, persist for several weeks, or are accompanied by other symptoms, contact a healthcare provider for medical advice. Emergency medical care is needed if there are severe symptoms, such as mental changes, difficulty breathing, or a high fever. ## How is the cause of the loss of taste and smell diagnosed? Diagnosing the cause of loss of taste and smell is a complex puzzle to solve. Often, there’s just one cause, but there’s a possibility that two things are going wrong, one affecting the sense of smell and another affecting the sense of taste. Although a primary care provider may start the diagnosis process, a dentist or a specialist in ear, nose, and throat disorders, called an otolaryngologist, may be needed. Diagnosis will require a complete physical exam, an exam of the head and neck, and an exam of the oral cavity. An ear, nose, and throat (ENT) specialist may look at the nasal passages for problems in the nasal cavity, such as [nasal polyps](https://www.singlecare.com/conditions/nasal-polyps-symptoms). This will be done with a procedure called a nasal endoscopy, which is performed with a camera attached to a flexible tube. A dentist may have to follow up on an oral exam with a complete dental exam. In addition to the many tests that may be required, people may undergo taste or smell tests. These tests aren’t required, but they confirm and quantify the extent to which taste and smell have been compromised. Taste tests are usually just that. People taste solutions or apply paper strips or cotton swabs to various parts of the tongue to identify the taste. A clinician or the patient will fill out a rating questionnaire to determine how much of a substance is required to produce a taste response, the intensity of the sensation, and whether it’s enjoyable or awful. Using cotton swabs, a clinician can then determine what parts of the tongue are affected. [Smell tests](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8264728/) accomplish the same goals. By having the patient smell various substances, the clinician can determine the minimal amount of smells that must be identified, the intensity of smells, and whether those smells are experienced as good or bad. Electrodes can measure taste and smell in less common cases. Other tests may include blood tests, urine tests, or medical imaging of the head or neck, such as a CT scan, MRI, or PET scan. RELATED: [Should I see an ENT or allergist?](https://www.singlecare.com/blog/ent-or-allergist/) ## Is the loss of taste and smell contagious? If the loss of taste and smell is associated with a viral infection, such as a cold, flu, or COVID-19, other people can catch that infection. The loss of taste and smell, however, is not contagious. In some cases, the infection will resolve, but the loss of taste and smell will linger for days, weeks, or even months afterward. Once the original infection is gone, there’s no danger of contagion. ## How long does the loss of taste and smell last? The loss of taste and smell will last for as long as the underlying condition is causing it, sometimes longer. The loss of taste and smell is usually a temporary health problem lasting days or weeks. Some causes may result in a chronic or permanent reduction in taste and smell, particularly if nerves or the central nervous system are damaged. In those cases, smell retraining and other therapies can help improve smell, but not taste. ## How to stop the loss of taste and smell Healthcare professionals don’t treat loss of taste, but they can [treat loss of smell](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8984764/) in a limited way through smell retraining, occupational therapy, and some medications that may improve olfactory function, such as [corticosteroids](https://www.singlecare.com/drug-classes/corticosteroids) and [theophylline](https://www.singlecare.com/prescription/theophylline). The only way health professionals treat the combined loss of taste and smell is by treating the underlying cause: - Getting rid of the loss of taste and smell when it’s due to smoking is not complicated—most people will see improvements in taste and smell when they quit smoking and avoid secondhand smoke - Eliminating exposure to environmental causes, such as toxins or pollution, is usually enough to improve taste and smell - The sense of taste and smell will usually return when the body fights off the infection that’s causing it, but the loss of taste and smell may linger for days, weeks, or longer - Avoiding allergens and using allergy medications can help prevent and treat allergic reactions - Switching to different types of medications may help with the loss of taste if a medication is the cause - Dietary deficiencies are treated with dietary changes and supplements - Dental problems are treated with oral surgery, prescription medications, and adopting good oral hygiene practices - Dry mouth can be treated by drinking fluids, using humidifiers, breathing steam, or using artificial saliva - Other medical conditions that cause the loss of taste and smell may require prescription medications or surgery ## Living with the loss of taste and smell Living with the loss of taste and smell is challenging. Much of our enjoyment in life comes from tasting and smelling foods and drinks and experiencing pleasant smells around us. The first thing people can do is try [smell retraining](https://www.enthealth.org/be_ent_smart/smell-retraining-therapy/), a proven therapy that can be done at home. Smell retraining increases one’s perceptions of the sense of smell and involves sniffing the same four scents from essential oils twice per day. The nature of these essential oils is not considered important, but in the [original research](https://onlinelibrary.wiley.com/doi/10.1002/lary.20101), the investigators used eucalyptus, rose, citronella (lemon), and eugenol (cloves). Other remedies involve drinking fluids to keep the oral cavity moist or trying various foods to find the most flavorful and enjoyable. RELATED: [How to regain taste and smell after coronavirus](https://www.singlecare.com/blog/news/loss-of-taste-and-smell-coronavirus/) ## What’s next? Additional resources for people with the loss of taste and smell ### Test and diagnostics - [Aguesia](https://www.ncbi.nlm.nih.gov/books/NBK549775/), StatPearls (2023) - [Diagnosis of anosmia and hyposmia: A systematic review](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8264728/), Allergy & Rhinology (2021) - [Influence of medications on smell and taste disorders](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6051304/), World Journal of Otorhinolaryngology-Head and Neck Surgery (2018) - [Overview of smell and taste disorders](https://www.merckmanuals.com/home/ear,-nose,-and-throat-disorders/symptoms-of-nose-and-throat-disorders/overview-of-smell-and-taste-disorders), Merck Manual Consumer Version (2023) - [Taste disorders](https://www.nidcd.nih.gov/health/taste-disorders), NIH National Institute of Deafness and Other Communication Disorders (2023) ### Treatments - [Aguesia](https://www.ncbi.nlm.nih.gov/books/NBK549775/), StatPearls (2023) - [Smell retraining therapy](https://www.enthealth.org/be_ent_smart/smell-retraining-therapy/), ENT Health (2023) - [Treatment strategies for postviral olfactory dysfunction: A systematic review](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8984764/), Allergy and Asthma Proceedings (2022) ### Scientific studies and clinical trials - [Effects of olfactory training in patients with olfactory loss](https://onlinelibrary.wiley.com/doi/10.1002/lary.20101), The Laryngoscope (2009) ### More information on related health conditions - [Allergy treatments and medications](https://www.singlecare.com/conditions/allergy-treatment-and-medications), SingleCare (2023) - [Common cold treatments and medications](https://www.singlecare.com/conditions/common-cold-treatment-and-medications), SingleCare (2023) - [Influenza treatments and medications](https://www.singlecare.com/conditions/influenza-treatment-and-medications), SingleCare (2020)
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