🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 142 (from laksa121)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa142.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.webmd.com/skin-problems-and-treatments/common-rashes\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.webmd.com/skin-problems-and-treatments/common-rashes\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.webmd.com\/skin-problems-and-treatments\/common-rashes","crawl_time":1774565078,"first_indexed_time":0,"http_code":200,"src_unparsed":"com,webmd!www,\/skin-problems-and-treatments\/common-rashes s443","src_root_hash":"18365360746078618142","history_drop_reason":null,"meta_title":"Common Rashes: Types, Symptoms, Treatments, & More","meta_descriptions":["The basics on some common types of skin rashes, including eczema, granuloma annulare, lichen planus, and pityriasis rosea."],"attrs_boilerpipe_text":"Rashes are unusual changes in skin color or texture. They normally come from skin inflammation, which can have different causes.\nThere are many types of rashes, including those caused by skin conditions like\neczema\n, granuloma annulare, lichen planus, and pityriasis rosea.\nThe symptoms that come along with a skin rash depend on the cause and type of rash. Some common symptoms include:\nBlistering\nRedness\nScaly or dry skin\nSimilarity to hives\nBlotchiness\nSwelling or inflammation\nItchy skin\nPain\nInfection of the areas of broken skin\nShiny, flat-topped bumps\nLarge affected areas of skin\nCircular-shaped affected areas\nIrritants and allergens in the climate\/environment can cause rashes on the skin. Other common causes include:\nViral, bacterial, or fungal infections\nSkin conditions such as rosacea or eczema\nStress\nSkin irritants (including soaps,\nskin care products\n, or some fabrics)\nPersonal and\/or family history of allergies, hay fever, or asthma\nAllergic to certain medications, including those that treat high blood pressure, heart disease, and arthritis\nTriggering agents from other conditions, such as hepatitis B or hepatitis C\n Some causes and triggers for rashes are unknown.\nSome common skin rash types include those caused by skin conditions like eczema, granuloma annulare, lichen planus, and pityriasis rosea.\nEczema\nEczema is a general term that describes several different conditions in which skin is inflamed, red, scaly, and itchy. Eczema is a common skin condition, and\natopic dermatitis\n(also called atopic eczema) is one of the most common forms of eczema. It can affect adults or children and isn’t contagious.\nThe way eczema looks can vary from person to person. In adults, eczema most often affects the hands, elbows, and back of your knees. In young children, eczema often also shows up on the face, back of the neck, and scalp.\nSome things can trigger a flare-up of eczema or make eczema worse, but they don’t cause the condition.\nHives\nHives\nis a skin condition that causes raised, itchy bumps or welts. If you have hives, you could be allergic to something airborne or an insect bite. It can also be caused by changes in the temperature and bacterial infections.\nContact dermatitis\nThe type of rash that comes from contact dermatitis happens when your body reacts to irritants such as detergents, fragrances, and chemicals. It can cause inflammation, itchiness, and redness.\nGranuloma annulare \nGranuloma annulare is a chronic skin condition. A circular-shaped rash with reddish bumps (papules) is a common symptom. Most often, it affects children and young adults. It's slightly more common in girls and is usually seen in people who are otherwise healthy.\nIf you have granuloma annulare, you'll usually notice one or more rings of small, firm bumps over the back of your forearms, hands, or feet. The rash may be mildly itchy.\nLichen planus\nLichen planus\nis a common skin condition that causes shiny, flat-topped bumps. They often have an angular shape and a reddish-purplish color. Lichen planus can show up anywhere on the skin but often affects the insides of your wrists and ankles, lower legs, back, and neck. Some people have lichen planus inside their mouth, genital region, scalp, and nails. Thick collections of bumps may occur, especially on the shins.\nLichen planus most often affects adults ages 30-70 years. It isn’t common in very young or elderly people.\nPityriasis rosea\nPityriasis rosea is a common skin rash that is usually mild. The condition often begins with a large, scaly, pink patch of skin on your chest or back. Next, you’ll notice one patch of pink skin quickly followed by more. Your skin will be itchy and red or inflamed. The number and sizes of spots can vary.\nPityriasis rosea\naffects the back, neck, chest, abdomen, upper arms, and legs. The rash can differ from person to person.\nViral conditions.\nRashes on the skin can be the result of a viral infection such as measles or chickenpox.\nPsoriasis.\nThis skin condition causes a rash is thick and scaly and usually appears on the knees, back, elbows, genitals, and scalp. It is permanent and can be passed down from your parents.\nDiagnosing a skin rash can be hard because the symptoms can be caused by many things. Your doctor will check your skin and ask about your symptoms and may decide to diagnose your rash using tests such as:\nSkin biopsy.\nThis involves taking a small bit of skin from the affected area and sending it to a lab for testing for a virus or bacteria. (see symptoms and diagnosis of eczema)\nBlood test.\nYour doctor can diagnose certain diseases by looking at antibodies in your blood. Also, rashes can be the result of systemic conditions, and blood tests can help to check how your organs may be affected.\nAllergy test.\nThese tests include skin pricks or patch tests to look for allergens. During the test, your skin is exposed to certain allergens to detect any potential reactions.\nThe treatment your doctor recommends will depend on the cause of your skin rash.\nSome treatment options include:\nOver-the-counter creams and ointments\nYou can treat rashes caused by skin conditions like eczema with moisturizers that are fragrance-free and contain ingredients such as\nceramides\n, glycerin, and mineral oil. Medications include over-the-counter creams and ointments containing the steroid hydrocortisone (for example, Cortizone-10, Cort-Aid, Dermarest Eczema, Neosporin Eczema). These products may help control the itching, swelling, and redness linked to eczema.\nPrescription creams and ointments\n \nIn more severe cases, prescription-strength cortisone creams,\nointments and solutions are also used. Some options include:\nSteroids.\nIf you have ongoing symptoms, your doctor may prescribe topical or oral steroid treatment, which can help with itchy and inflamed skin.\nTopical immunomodulators.\nFor people with mild-to-moderate eczema, topical\nimmunomodulators\ncan help. These medications work by changing the body's immune response to allergens, thereby preventing flare-ups. They include brand name products Elidel and Protopic,\nVtama, Adquey ointment, Eucrisa ointment, and Zoryve cream or foam.\nShots (injections).\nInjections can be used to treat rashes that come from certain skin conditions. Dupilumab (Dupixent), for example, is an injectable monoclonal antibody used in patients with moderate-to-severe atopic dermatitis. It clears the itch quickly in most patients. Cortisone shots can also be used in more severe cases.\nPhototherapy\n(light therapy).\nThis is another treatment that helps some people with eczema. Phototherapy uses ultraviolet light, either ultraviolet A (UVA) or ultraviolet B (UVB), from special lamps to treat people with severe cases.\nRisks linked to phototherapy include burning (usually resembling a mild sunburn), dry skin, itchy skin, freckling, skin cancer, and potential premature aging of the skin. Your health care professionals will work with you to lessen any risks.\nAnti-itch products or allergy medications such as antihistamines.\nAntihistamines, such as Diphenhydramine or Benadryl\n,\ncan help soothe the itchiness.\nImmunosuppressive medications.\nMedications including steroid shots, prednisone, or other drugs can help clear up a rash by suppressing your\nimmune system.\nRashes on the skin aren't usually problematic and respond well to treatment. Some possible complications include:\nInfection.\nWhen you scratch an itchy rash, it opens your skin. This allows pathogens such as bacteria to enter, putting you at risk of infection.\nAnaphylaxis.\nIn addition to a skin rash, some people can have a severe allergic reaction that is life-threatening, also known as\nanaphylaxis\n. The extreme swelling that happens in anaphylaxis can close your air passages. An immediate injection with epinephrine (EpiPen) is needed to act against the allergic reaction. If you have an itchy feeling in your mouth or throat with your skin rash, talk to your doctor about the need for an EpiPen.\nThere are ways to lessen your risk and prevent flare-ups\nsuch as those associated with\natopic eczema\n:\nReduce stress\n.\nAvoid scratchy materials (for example, wool) and chemicals that can be triggers, such as harsh soaps, detergents, and solvents.\nMoisturize often.\nAvoid sudden changes in temperature or humidity.\nAvoid situations that cause sweating and overheating.\nImmediately wash your hands when you come into contact with something you're allergic to.","attrs_markdown":"[Skip to main content](https:\/\/www.webmd.com\/skin-problems-and-treatments\/common-rashes#main-container)\n\n[![Logo for WebMD](https:\/\/img.wbmdstatic.com\/vim\/live\/webmd\/consumer_assets\/site_images\/logos\/webmd\/web\/webmd_logo_white.svg)](https:\/\/www.webmd.com\/)\n\n- [Home](https:\/\/www.webmd.com\/)\n- [Conditions]()\n  Back\n  \n  Conditions[![](https:\/\/img.lb.wbmdstatic.com\/webmd_v1_static_vue\/091e9c5e81e52376\/client\/img\/arrow-right.4012ff31.svg) View All](https:\/\/www.webmd.com\/a-to-z-guides\/health-topics)\n  \n  - 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[Bacterial Skin Infections](https:\/\/www.webmd.com\/skin-problems-and-treatments\/leprosy-symptoms-treatments-history)\n  - [Fungal Skin Infections](https:\/\/www.webmd.com\/skin-problems-and-treatments\/fungal-infections-skin)\n  - [Viral Skin Infections](https:\/\/www.webmd.com\/skin-problems-and-treatments\/molluscum-contagium)\n- [Skin Discolorations](https:\/\/www.webmd.com\/skin-problems-and-treatments\/red-birthmarks)\n- [Appointment Prep](https:\/\/www.webmd.com\/apptprep\/your-csu-journey\/toc)\n- [View Full Guide](https:\/\/www.webmd.com\/skin-problems-and-treatments\/default.htm)\n\n# Rashes\n![](https:\/\/img.lb.wbmdstatic.com\/vim\/live\/webmd\/consumer_assets\/site_images\/articles\/biographies\/kristin-michell-alt-382x382.jpg?resize=51px:51px&output-quality=75)\n\n![](https:\/\/img.lb.wbmdstatic.com\/vim\/live\/webmd\/consumer_assets\/site_images\/articles\/biographies\/avatar_placeholder.jpg?resize=51px:51px&output-quality=75)\n\nWritten by [Kristin Mitchell](https:\/\/www.webmd.com\/bio\/kristin-mitchell), [WebMD Editorial Contributor](https:\/\/www.webmd.com\/bio\/webmd-editorial-contributors)\n\nMedically Reviewed by [Stephanie S. Gardner, MD](https:\/\/www.webmd.com\/bio\/stephanie-s-gardner) on October 21, 2025\n\n- [What Are Rashes?](https:\/\/www.webmd.com\/skin-problems-and-treatments\/common-rashes#091e9c5e80007bf3-1-1)\n- [Symptoms of Rashes](https:\/\/www.webmd.com\/skin-problems-and-treatments\/common-rashes#091e9c5e80007bf3-1-2)\n- [Causes of Rashes](https:\/\/www.webmd.com\/skin-problems-and-treatments\/common-rashes#091e9c5e80007bf3-1-3)\n- [Common Skin Rash Types](https:\/\/www.webmd.com\/skin-problems-and-treatments\/common-rashes#091e9c5e80007bf3-2-4)\n- [Diagnosing Rashes](https:\/\/www.webmd.com\/skin-problems-and-treatments\/common-rashes#091e9c5e80007bf3-5-7)\n- [Treatment for Rashes](https:\/\/www.webmd.com\/skin-problems-and-treatments\/common-rashes#091e9c5e80007bf3-5-8)\n- [Complications of Rashes](https:\/\/www.webmd.com\/skin-problems-and-treatments\/common-rashes#091e9c5e80007bf3-7-11)\n- [How to Prevent Rashes](https:\/\/www.webmd.com\/skin-problems-and-treatments\/common-rashes#091e9c5e80007bf3-8-12)\n\n6 min read\n\n## What Are Rashes?\nRashes are unusual changes in skin color or texture. They normally come from skin inflammation, which can have different causes.\n\nThere are many types of rashes, including those caused by skin conditions like [eczema](https:\/\/www.webmd.com\/skin-problems-and-treatments\/eczema\/atopic-dermatitis-eczema), granuloma annulare, lichen planus, and pityriasis rosea.\n\n![](https:\/\/img.lb.wbmdstatic.com\/vim\/live\/webmd\/consumer_assets\/site_images\/articles\/health_tools\/eczema_in_older_adults_slideshow\/1800ss_getty_rf_atopic_dermatitis.jpg?resize=750px:*&output-quality=75)\n\nEczema is a general term that describes several different conditions in which skin is inflamed, red, scaly, and itchy. Atopic dermatitis, which can cause an itchy rash, is one of the most common forms of eczema. (Photo credit: Moment\/Getty Images)\n\n## Symptoms of Rashes\nThe symptoms that come along with a skin rash depend on the cause and type of rash. Some common symptoms include:\n\n- Blistering\n- Redness\n- Scaly or dry skin\n- Similarity to hives\n- Blotchiness\n- Swelling or inflammation\n- Itchy skin\n- Pain\n- Infection of the areas of broken skin\n- Shiny, flat-topped bumps\n- Large affected areas of skin\n- Circular-shaped affected areas\n\n## Causes of Rashes\nIrritants and allergens in the climate\/environment can cause rashes on the skin. Other common causes include:\n\n- Viral, bacterial, or fungal infections\n- Skin conditions such as rosacea or eczema\n- Stress\n- Skin irritants (including soaps, [skin care products](https:\/\/www.webmd.com\/beauty\/skin-care-products), or some fabrics)\n- Personal and\/or family history of allergies, hay fever, or asthma\n- Allergic to certain medications, including those that treat high blood pressure, heart disease, and arthritis\n- Triggering agents from other conditions, such as hepatitis B or hepatitis C\n\nSome causes and triggers for rashes are unknown.\n\n## Common Skin Rash Types\nSome common skin rash types include those caused by skin conditions like eczema, granuloma annulare, lichen planus, and pityriasis rosea.\n\n**Eczema**\n\nEczema is a general term that describes several different conditions in which skin is inflamed, red, scaly, and itchy. Eczema is a common skin condition, and [atopic dermatitis](https:\/\/www.webmd.com\/skin-problems-and-treatments\/eczema\/eczema-basics) (also called atopic eczema) is one of the most common forms of eczema. It can affect adults or children and isn’t contagious.\n\nThe way eczema looks can vary from person to person. In adults, eczema most often affects the hands, elbows, and back of your knees. In young children, eczema often also shows up on the face, back of the neck, and scalp.\n\nSome things can trigger a flare-up of eczema or make eczema worse, but they don’t cause the condition.\n\n**Hives**\n\n[Hives](https:\/\/www.webmd.com\/skin-problems-and-treatments\/hives-urticaria-angioedema) is a skin condition that causes raised, itchy bumps or welts. If you have hives, you could be allergic to something airborne or an insect bite. It can also be caused by changes in the temperature and bacterial infections.\n\n**Contact dermatitis**\n\nThe type of rash that comes from contact dermatitis happens when your body reacts to irritants such as detergents, fragrances, and chemicals. It can cause inflammation, itchiness, and redness.\n\n**Granuloma annulare**\n\nGranuloma annulare is a chronic skin condition. A circular-shaped rash with reddish bumps (papules) is a common symptom. Most often, it affects children and young adults. It's slightly more common in girls and is usually seen in people who are otherwise healthy.\n\nIf you have granuloma annulare, you'll usually notice one or more rings of small, firm bumps over the back of your forearms, hands, or feet. The rash may be mildly itchy.\n\n**Lichen planus**\n\n[Lichen planus](https:\/\/www.webmd.com\/oral-health\/oral-lichen-planus) is a common skin condition that causes shiny, flat-topped bumps. They often have an angular shape and a reddish-purplish color. Lichen planus can show up anywhere on the skin but often affects the insides of your wrists and ankles, lower legs, back, and neck. Some people have lichen planus inside their mouth, genital region, scalp, and nails. Thick collections of bumps may occur, especially on the shins.\n\nLichen planus most often affects adults ages 30-70 years. It isn’t common in very young or elderly people.\n\n**Pityriasis rosea**\n\nPityriasis rosea is a common skin rash that is usually mild. The condition often begins with a large, scaly, pink patch of skin on your chest or back. Next, you’ll notice one patch of pink skin quickly followed by more. Your skin will be itchy and red or inflamed. The number and sizes of spots can vary.\n\n[Pityriasis rosea](https:\/\/www.webmd.com\/skin-problems-and-treatments\/whats-pityriasis-rosea) affects the back, neck, chest, abdomen, upper arms, and legs. The rash can differ from person to person.\n\n**Viral conditions.** Rashes on the skin can be the result of a viral infection such as measles or chickenpox.\n\n**Psoriasis.** This skin condition causes a rash is thick and scaly and usually appears on the knees, back, elbows, genitals, and scalp. It is permanent and can be passed down from your parents.\n\n## Diagnosing Rashes\nDiagnosing a skin rash can be hard because the symptoms can be caused by many things. Your doctor will check your skin and ask about your symptoms and may decide to diagnose your rash using tests such as:\n\n- **Skin biopsy.** This involves taking a small bit of skin from the affected area and sending it to a lab for testing for a virus or bacteria. (see symptoms and diagnosis of eczema)\n- **Blood test.** Your doctor can diagnose certain diseases by looking at antibodies in your blood. Also, rashes can be the result of systemic conditions, and blood tests can help to check how your organs may be affected.\n- **Allergy test.** These tests include skin pricks or patch tests to look for allergens. During the test, your skin is exposed to certain allergens to detect any potential reactions.\n\n## Treatment for Rashes\nThe treatment your doctor recommends will depend on the cause of your skin rash.Some treatment options include:\n\n### **Over-the-counter creams and ointments**\n\nYou can treat rashes caused by skin conditions like eczema with moisturizers that are fragrance-free and contain ingredients such as [ceramides](https:\/\/www.webmd.com\/beauty\/what-to-know-about-ceramides-for-skin), glycerin, and mineral oil. Medications include over-the-counter creams and ointments containing the steroid hydrocortisone (for example, Cortizone-10, Cort-Aid, Dermarest Eczema, Neosporin Eczema). These products may help control the itching, swelling, and redness linked to eczema.\n\n### **Prescription creams and ointments**\nIn more severe cases, prescription-strength cortisone creams, ointments and solutions are also used. Some options include:\n\n**Steroids.** If you have ongoing symptoms, your doctor may prescribe topical or oral steroid treatment, which can help with itchy and inflamed skin.\n\n**Topical immunomodulators.** For people with mild-to-moderate eczema, topical [immunomodulators](https:\/\/www.webmd.com\/skin-problems-and-treatments\/eczema\/immunomodulators-atopic-dermatitis) can help. These medications work by changing the body's immune response to allergens, thereby preventing flare-ups. They include brand name products Elidel and Protopic, Vtama, Adquey ointment, Eucrisa ointment, and Zoryve cream or foam.\n\n**Shots (injections).** Injections can be used to treat rashes that come from certain skin conditions. Dupilumab (Dupixent), for example, is an injectable monoclonal antibody used in patients with moderate-to-severe atopic dermatitis. It clears the itch quickly in most patients. Cortisone shots can also be used in more severe cases.\n\n**Phototherapy** [**(light therapy).**](https:\/\/www.webmd.com\/depression\/what-is-phototherapy) This is another treatment that helps some people with eczema. Phototherapy uses ultraviolet light, either ultraviolet A (UVA) or ultraviolet B (UVB), from special lamps to treat people with severe cases.\n\nRisks linked to phototherapy include burning (usually resembling a mild sunburn), dry skin, itchy skin, freckling, skin cancer, and potential premature aging of the skin. Your health care professionals will work with you to lessen any risks.\n\n**Anti-itch products or allergy medications such as antihistamines.** Antihistamines, such as Diphenhydramine or Benadryl[,]() can help soothe the itchiness.\n\n**Immunosuppressive medications.** Medications including steroid shots, prednisone, or other drugs can help clear up a rash by suppressing your [immune system.](https:\/\/www.webmd.com\/cold-and-flu\/immune-system-function)\n\n## Complications of Rashes\nRashes on the skin aren't usually problematic and respond well to treatment. Some possible complications include:\n\n**Infection.** When you scratch an itchy rash, it opens your skin. This allows pathogens such as bacteria to enter, putting you at risk of infection.\n\n**Anaphylaxis.** In addition to a skin rash, some people can have a severe allergic reaction that is life-threatening, also known as [anaphylaxis](https:\/\/www.webmd.com\/allergies\/anaphylaxis). The extreme swelling that happens in anaphylaxis can close your air passages. An immediate injection with epinephrine (EpiPen) is needed to act against the allergic reaction. If you have an itchy feeling in your mouth or throat with your skin rash, talk to your doctor about the need for an EpiPen.\n\n## How to Prevent Rashes\nThere are ways to lessen your risk and prevent flare-ups [such as those associated with]()  [atopic eczema](https:\/\/www.webmd.com\/skin-problems-and-treatments\/eczema\/eczema-basics):\n\n- Reduce stress[.](https:\/\/www.webmd.com\/balance\/stress-management\/stress-management)\n- Avoid scratchy materials (for example, wool) and chemicals that can be triggers, such as harsh soaps, detergents, and solvents.\n- Moisturize often.\n- Avoid sudden changes in temperature or humidity.\n- Avoid situations that cause sweating and overheating.\n- Immediately wash your hands when you come into contact with something you're allergic to.\n\nStill Have Questions?\n\n[Eczema home remedies](https:\/\/www.webmd.com\/search?query=Eczema%20home%20remedies%20&rs=true)\n\n[Eczema treatment options](https:\/\/www.webmd.com\/search?query=Eczema%20treatment%20options%20&rs=true)\n\n[Eczema causes](https:\/\/www.webmd.com\/search?query=Eczema%20causes%20&rs=true)\n\n[Types of eczema](https:\/\/www.webmd.com\/search?query=Types%20of%20eczema&rs=true)\n\n[Eczema images](https:\/\/www.webmd.com\/search?query=Eczema%20images&rs=true)\n\nSources\n\nUpdate History\n\nShare\n\nPrint\n\nSave\n\nSOURCES:\n\nAmerican Academy of Dermatology.\n\nAustralasian College of Dermatology.\n\nNational Organization for Rare Disorders – Photo Caption\n\nDermNet NZ – Photo Caption\n\nCleveland Clinic: “Skin Rash,” “Anaphylaxis.”\n\n[View privacy policy, copyright and trust info](https:\/\/www.webmd.com\/about-webmd-policies\/about-privacy-policy)\n\nShare\n\nPrint\n\nSave\n\n[View privacy policy, copyright and trust info](https:\/\/www.webmd.com\/about-webmd-policies\/about-privacy-policy)\n\n### More on Skin Problems and Treatments\n![photo of more on atopic dermatitis](https:\/\/img.lb.wbmdstatic.com\/vim\/live\/webmd\/consumer_assets\/site_images\/article_thumbnails\/hpt_toc_redesign\/more_on\/MoreOn_AtopicDerm.jpg?resize=300px:*&output-quality=75)\n\n[Skin Infections: What You Should Know](https:\/\/www.webmd.com\/skin-problems-and-treatments\/ss\/slideshow-skin-infections)\n\n[Combating Common Skin Irritants](https:\/\/www.webmd.com\/skin-problems-and-treatments\/skin-irritants)\n\n[The Skin's Vital Role in Protecting Your Body](https:\/\/www.webmd.com\/skin-problems-and-treatments\/understanding-your-skin)\n\nRecommended\n\n![photo of woman with cream](https:\/\/img.lb.wbmdstatic.com\/vim\/live\/webmd\/consumer_assets\/site_images\/article_thumbnails\/hpt_toc_redesign\/hpt_toc_redesign_illustrations\/Recommended_Skin-Problems-4.jpg?resize=500px:*&output-quality=75)\n\n### Related Links\n- [Acne](https:\/\/www.webmd.com\/skin-problems-and-treatments\/acne\/default.htm)\n- [Bedbugs](https:\/\/www.webmd.com\/skin-problems-and-treatments\/guide\/bedbugs-infestation)\n- [Cold Sores](https:\/\/www.webmd.com\/skin-problems-and-treatments\/ss\/slideshow-cold-sores)\n- [Eczema](https:\/\/www.webmd.com\/skin-problems-and-treatments\/eczema\/default.htm)\n- [Fungal Infections](https:\/\/www.webmd.com\/skin-problems-and-treatments\/guide\/fungal-infections-skin)\n- [Hair Loss](https:\/\/www.webmd.com\/skin-problems-and-treatments\/hair-loss\/default.htm)\n- [Healthy Beauty](https:\/\/www.webmd.com\/beauty\/default.htm)\n- [Lice](https:\/\/www.webmd.com\/skin-problems-and-treatments\/skin-conditions-lice)\n- [Psoriasis](https:\/\/www.webmd.com\/skin-problems-and-treatments\/psoriasis\/default.htm)\n- [Psoriatic Arthritis](https:\/\/www.webmd.com\/arthritis\/psoriatic-arthritis\/ss\/slideshow-visual-guide-to-psoriatic-arthritis)\n- [Poison Ivy](https:\/\/www.webmd.com\/skin-problems-and-treatments\/guide\/understanding-poison-ivy-oak-sumac-basics)\n- [Rosacea](https:\/\/www.webmd.com\/skin-problems-and-treatments\/understanding-rosacea-basics)\n- [Shingles](https:\/\/www.webmd.com\/skin-problems-and-treatments\/shingles\/default.htm)\n- [Skin Cancer](https:\/\/www.webmd.com\/melanoma-skin-cancer\/default.htm)\n- [More Related Topics](https:\/\/www.webmd.com\/skin-problems-and-treatments\/directory-index)\n- [Skin Topics News](https:\/\/www.webmd.com\/skin-problems-and-treatments\/news-features)\n- [Skin Topics Medical Reference](https:\/\/www.webmd.com\/skin-problems-and-treatments\/medical-reference\/default.htm)\n- [Skin Topics Slideshows](https:\/\/www.webmd.com\/skin-problems-and-treatments\/ss\/default.htm)\n- [Skin Topics Quizzes](https:\/\/www.webmd.com\/skin-problems-and-treatments\/quiz\/default.htm)\n- [Skin Topics Videos](https:\/\/www.webmd.com\/skin-problems-and-treatments\/video\/default.htm)\n- [Find a Dermatologist](https:\/\/doctor.webmd.com\/providers\/specialty\/dermatology)\n\n### Sign up for our free Good Health Newsletter\n#### Get wellness tips to help you live happier and healthier\n\n![WebMD: Better information. 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This site is protected by reCAPTCHA and the Google [Privacy Policy](https:\/\/policies.google.com\/privacy) and [Terms of Service](https:\/\/policies.google.com\/terms) apply.\n\n### Follow WebMD on Social Media\n### Download WebMD App\n[![App Store Image](https:\/\/img.webmd.com\/vim\/live\/webmd\/consumer_assets\/site_images\/tocs\/community\/thumbnails\/ios-dwnld.png?resize=90:32)](https:\/\/taps.io\/Bzg3Q)[![Andriod Store Image](https:\/\/img.webmd.com\/vim\/live\/webmd\/consumer_assets\/site_images\/tocs\/community\/thumbnails\/android-dwnld.png?resize=90:32)](https:\/\/taps.io\/Bzg2w)\n\n[Policies]()\n\n[About]()\n\n[For Advertisers]()\n\n- [Privacy Policy](https:\/\/www.webmd.com\/about-webmd-policies\/about-privacy-policy)\n- [Cookie Policy](https:\/\/www.webmd.com\/about-webmd-policies\/cookie-policy)\n- [Editorial Policy](https:\/\/www.webmd.com\/about-webmd-policies\/about-editorial-policy)\n- [Advertising Policy](https:\/\/www.webmd.com\/about-webmd-policies\/about-advertising-policy)\n- [Correction Policy](https:\/\/www.webmd.com\/about-webmd-policies\/webmd-corrections-policies)\n- [Terms of Use](https:\/\/www.webmd.com\/about-webmd-policies\/about-terms-and-conditions-of-use)\n- [Accessibility Statement](https:\/\/www.webmd.com\/about-webmd-policies\/accessibility-statement)\n\n- [![TRUSTe](https:\/\/privacy-policy.truste.com\/privacy-seal\/seal?rid=07326333-3522-463d-81bf-f00fd7171fff)](https:\/\/privacy.truste.com\/privacy-seal\/validation?rid=07326333-3522-463d-81bf-f00fd7171fff)\n- ![TAG Registered Seal](https:\/\/img.webmd.com\/dtmcms\/live\/webmd\/consumer_assets\/site_images\/layout\/shared\/tag-registered.png?resize=*:60px)\n- ![Adchoices](https:\/\/img.webmd.com\/dtmcms\/live\/webmd\/consumer_assets\/site_images\/oncology\/1\/footer-images\/ad-choice.png)\n\n© 2005 - 2026 WebMD LLC, an [Internet Brands](https:\/\/www.internetbrands.com\/) company. All rights reserved. WebMD does not provide medical advice, diagnosis or treatment. [See additional information.](https:\/\/www.webmd.com\/about-webmd-policies\/additional-info)\n\n[![Logo for WebMD](https:\/\/img.wbmdstatic.com\/vim\/live\/webmd\/consumer_assets\/site_images\/oncology\/1\/images\/webmd-logo-white.svg)](https:\/\/www.webmd.com\/)","attrs_readable_markdown":"Rashes are unusual changes in skin color or texture. They normally come from skin inflammation, which can have different causes.\n\nThere are many types of rashes, including those caused by skin conditions like [eczema](https:\/\/www.webmd.com\/skin-problems-and-treatments\/eczema\/atopic-dermatitis-eczema), granuloma annulare, lichen planus, and pityriasis rosea.\n\nThe symptoms that come along with a skin rash depend on the cause and type of rash. Some common symptoms include:\n\n- Blistering\n- Redness\n- Scaly or dry skin\n- Similarity to hives\n- Blotchiness\n- Swelling or inflammation\n- Itchy skin\n- Pain\n- Infection of the areas of broken skin\n- Shiny, flat-topped bumps\n- Large affected areas of skin\n- Circular-shaped affected areas\n\nIrritants and allergens in the climate\/environment can cause rashes on the skin. Other common causes include:\n\n- Viral, bacterial, or fungal infections\n- Skin conditions such as rosacea or eczema\n- Stress\n- Skin irritants (including soaps, [skin care products](https:\/\/www.webmd.com\/beauty\/skin-care-products), or some fabrics)\n- Personal and\/or family history of allergies, hay fever, or asthma\n- Allergic to certain medications, including those that treat high blood pressure, heart disease, and arthritis\n- Triggering agents from other conditions, such as hepatitis B or hepatitis C\n\nSome causes and triggers for rashes are unknown.\n\nSome common skin rash types include those caused by skin conditions like eczema, granuloma annulare, lichen planus, and pityriasis rosea.\n\n**Eczema**\n\nEczema is a general term that describes several different conditions in which skin is inflamed, red, scaly, and itchy. Eczema is a common skin condition, and [atopic dermatitis](https:\/\/www.webmd.com\/skin-problems-and-treatments\/eczema\/eczema-basics) (also called atopic eczema) is one of the most common forms of eczema. It can affect adults or children and isn’t contagious.\n\nThe way eczema looks can vary from person to person. In adults, eczema most often affects the hands, elbows, and back of your knees. In young children, eczema often also shows up on the face, back of the neck, and scalp.\n\nSome things can trigger a flare-up of eczema or make eczema worse, but they don’t cause the condition.\n\n**Hives**\n\n[Hives](https:\/\/www.webmd.com\/skin-problems-and-treatments\/hives-urticaria-angioedema) is a skin condition that causes raised, itchy bumps or welts. If you have hives, you could be allergic to something airborne or an insect bite. It can also be caused by changes in the temperature and bacterial infections.\n\n**Contact dermatitis**\n\nThe type of rash that comes from contact dermatitis happens when your body reacts to irritants such as detergents, fragrances, and chemicals. It can cause inflammation, itchiness, and redness.\n\n**Granuloma annulare**\n\nGranuloma annulare is a chronic skin condition. A circular-shaped rash with reddish bumps (papules) is a common symptom. Most often, it affects children and young adults. It's slightly more common in girls and is usually seen in people who are otherwise healthy.\n\nIf you have granuloma annulare, you'll usually notice one or more rings of small, firm bumps over the back of your forearms, hands, or feet. The rash may be mildly itchy.\n\n**Lichen planus**\n\n[Lichen planus](https:\/\/www.webmd.com\/oral-health\/oral-lichen-planus) is a common skin condition that causes shiny, flat-topped bumps. They often have an angular shape and a reddish-purplish color. Lichen planus can show up anywhere on the skin but often affects the insides of your wrists and ankles, lower legs, back, and neck. Some people have lichen planus inside their mouth, genital region, scalp, and nails. Thick collections of bumps may occur, especially on the shins.\n\nLichen planus most often affects adults ages 30-70 years. It isn’t common in very young or elderly people.\n\n**Pityriasis rosea**\n\nPityriasis rosea is a common skin rash that is usually mild. The condition often begins with a large, scaly, pink patch of skin on your chest or back. Next, you’ll notice one patch of pink skin quickly followed by more. Your skin will be itchy and red or inflamed. The number and sizes of spots can vary.\n\n[Pityriasis rosea](https:\/\/www.webmd.com\/skin-problems-and-treatments\/whats-pityriasis-rosea) affects the back, neck, chest, abdomen, upper arms, and legs. The rash can differ from person to person.\n\n**Viral conditions.** Rashes on the skin can be the result of a viral infection such as measles or chickenpox.\n\n**Psoriasis.** This skin condition causes a rash is thick and scaly and usually appears on the knees, back, elbows, genitals, and scalp. It is permanent and can be passed down from your parents.\n\nDiagnosing a skin rash can be hard because the symptoms can be caused by many things. Your doctor will check your skin and ask about your symptoms and may decide to diagnose your rash using tests such as:\n\n- **Skin biopsy.** This involves taking a small bit of skin from the affected area and sending it to a lab for testing for a virus or bacteria. (see symptoms and diagnosis of eczema)\n- **Blood test.** Your doctor can diagnose certain diseases by looking at antibodies in your blood. Also, rashes can be the result of systemic conditions, and blood tests can help to check how your organs may be affected.\n- **Allergy test.** These tests include skin pricks or patch tests to look for allergens. During the test, your skin is exposed to certain allergens to detect any potential reactions.\n\nThe treatment your doctor recommends will depend on the cause of your skin rash.Some treatment options include:\n\n### **Over-the-counter creams and ointments**\n\nYou can treat rashes caused by skin conditions like eczema with moisturizers that are fragrance-free and contain ingredients such as [ceramides](https:\/\/www.webmd.com\/beauty\/what-to-know-about-ceramides-for-skin), glycerin, and mineral oil. Medications include over-the-counter creams and ointments containing the steroid hydrocortisone (for example, Cortizone-10, Cort-Aid, Dermarest Eczema, Neosporin Eczema). These products may help control the itching, swelling, and redness linked to eczema.\n\n### **Prescription creams and ointments**\nIn more severe cases, prescription-strength cortisone creams, ointments and solutions are also used. Some options include:\n\n**Steroids.** If you have ongoing symptoms, your doctor may prescribe topical or oral steroid treatment, which can help with itchy and inflamed skin.\n\n**Topical immunomodulators.** For people with mild-to-moderate eczema, topical [immunomodulators](https:\/\/www.webmd.com\/skin-problems-and-treatments\/eczema\/immunomodulators-atopic-dermatitis) can help. These medications work by changing the body's immune response to allergens, thereby preventing flare-ups. They include brand name products Elidel and Protopic, Vtama, Adquey ointment, Eucrisa ointment, and Zoryve cream or foam.\n\n**Shots (injections).** Injections can be used to treat rashes that come from certain skin conditions. Dupilumab (Dupixent), for example, is an injectable monoclonal antibody used in patients with moderate-to-severe atopic dermatitis. It clears the itch quickly in most patients. Cortisone shots can also be used in more severe cases.\n\n**Phototherapy** [**(light therapy).**](https:\/\/www.webmd.com\/depression\/what-is-phototherapy) This is another treatment that helps some people with eczema. Phototherapy uses ultraviolet light, either ultraviolet A (UVA) or ultraviolet B (UVB), from special lamps to treat people with severe cases.\n\nRisks linked to phototherapy include burning (usually resembling a mild sunburn), dry skin, itchy skin, freckling, skin cancer, and potential premature aging of the skin. Your health care professionals will work with you to lessen any risks.\n\n**Anti-itch products or allergy medications such as antihistamines.** Antihistamines, such as Diphenhydramine or Benadryl[,]() can help soothe the itchiness.\n\n**Immunosuppressive medications.** Medications including steroid shots, prednisone, or other drugs can help clear up a rash by suppressing your [immune system.](https:\/\/www.webmd.com\/cold-and-flu\/immune-system-function)\n\nRashes on the skin aren't usually problematic and respond well to treatment. Some possible complications include:\n\n**Infection.** When you scratch an itchy rash, it opens your skin. This allows pathogens such as bacteria to enter, putting you at risk of infection.\n\n**Anaphylaxis.** In addition to a skin rash, some people can have a severe allergic reaction that is life-threatening, also known as [anaphylaxis](https:\/\/www.webmd.com\/allergies\/anaphylaxis). The extreme swelling that happens in anaphylaxis can close your air passages. An immediate injection with epinephrine (EpiPen) is needed to act against the allergic reaction. If you have an itchy feeling in your mouth or throat with your skin rash, talk to your doctor about the need for an EpiPen.\n\nThere are ways to lessen your risk and prevent flare-ups [such as those associated with]()  [atopic eczema](https:\/\/www.webmd.com\/skin-problems-and-treatments\/eczema\/eczema-basics):\n\n- Reduce stress[.](https:\/\/www.webmd.com\/balance\/stress-management\/stress-management)\n- Avoid scratchy materials (for example, wool) and chemicals that can be triggers, such as harsh soaps, detergents, and solvents.\n- Moisturize often.\n- Avoid sudden changes in temperature or humidity.\n- Avoid situations that cause sweating and overheating.\n- Immediately wash your hands when you come into contact with something you're allergic to.","meta_canonical":null}

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Meta Description	The basics on some common types of skin rashes, including eczema, granuloma annulare, lichen planus, and pityriasis rosea.
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Boilerpipe Text	Rashes are unusual changes in skin color or texture. They normally come from skin inflammation, which can have different causes. There are many types of rashes, including those caused by skin conditions like eczema , granuloma annulare, lichen planus, and pityriasis rosea. The symptoms that come along with a skin rash depend on the cause and type of rash. Some common symptoms include: Blistering Redness Scaly or dry skin Similarity to hives Blotchiness Swelling or inflammation Itchy skin Pain Infection of the areas of broken skin Shiny, flat-topped bumps Large affected areas of skin Circular-shaped affected areas Irritants and allergens in the climate/environment can cause rashes on the skin. Other common causes include: Viral, bacterial, or fungal infections Skin conditions such as rosacea or eczema Stress Skin irritants (including soaps, skin care products , or some fabrics) Personal and/or family history of allergies, hay fever, or asthma Allergic to certain medications, including those that treat high blood pressure, heart disease, and arthritis Triggering agents from other conditions, such as hepatitis B or hepatitis C Some causes and triggers for rashes are unknown. Some common skin rash types include those caused by skin conditions like eczema, granuloma annulare, lichen planus, and pityriasis rosea. Eczema Eczema is a general term that describes several different conditions in which skin is inflamed, red, scaly, and itchy. Eczema is a common skin condition, and atopic dermatitis (also called atopic eczema) is one of the most common forms of eczema. It can affect adults or children and isn’t contagious. The way eczema looks can vary from person to person. In adults, eczema most often affects the hands, elbows, and back of your knees. In young children, eczema often also shows up on the face, back of the neck, and scalp. Some things can trigger a flare-up of eczema or make eczema worse, but they don’t cause the condition. Hives Hives is a skin condition that causes raised, itchy bumps or welts. If you have hives, you could be allergic to something airborne or an insect bite. It can also be caused by changes in the temperature and bacterial infections. Contact dermatitis The type of rash that comes from contact dermatitis happens when your body reacts to irritants such as detergents, fragrances, and chemicals. It can cause inflammation, itchiness, and redness. Granuloma annulare Granuloma annulare is a chronic skin condition. A circular-shaped rash with reddish bumps (papules) is a common symptom. Most often, it affects children and young adults. It's slightly more common in girls and is usually seen in people who are otherwise healthy. If you have granuloma annulare, you'll usually notice one or more rings of small, firm bumps over the back of your forearms, hands, or feet. The rash may be mildly itchy. Lichen planus Lichen planus is a common skin condition that causes shiny, flat-topped bumps. They often have an angular shape and a reddish-purplish color. Lichen planus can show up anywhere on the skin but often affects the insides of your wrists and ankles, lower legs, back, and neck. Some people have lichen planus inside their mouth, genital region, scalp, and nails. Thick collections of bumps may occur, especially on the shins. Lichen planus most often affects adults ages 30-70 years. It isn’t common in very young or elderly people. Pityriasis rosea Pityriasis rosea is a common skin rash that is usually mild. The condition often begins with a large, scaly, pink patch of skin on your chest or back. Next, you’ll notice one patch of pink skin quickly followed by more. Your skin will be itchy and red or inflamed. The number and sizes of spots can vary. Pityriasis rosea affects the back, neck, chest, abdomen, upper arms, and legs. The rash can differ from person to person. Viral conditions. Rashes on the skin can be the result of a viral infection such as measles or chickenpox. Psoriasis. This skin condition causes a rash is thick and scaly and usually appears on the knees, back, elbows, genitals, and scalp. It is permanent and can be passed down from your parents. Diagnosing a skin rash can be hard because the symptoms can be caused by many things. Your doctor will check your skin and ask about your symptoms and may decide to diagnose your rash using tests such as: Skin biopsy. This involves taking a small bit of skin from the affected area and sending it to a lab for testing for a virus or bacteria. (see symptoms and diagnosis of eczema) Blood test. Your doctor can diagnose certain diseases by looking at antibodies in your blood. Also, rashes can be the result of systemic conditions, and blood tests can help to check how your organs may be affected. Allergy test. These tests include skin pricks or patch tests to look for allergens. During the test, your skin is exposed to certain allergens to detect any potential reactions. The treatment your doctor recommends will depend on the cause of your skin rash. Some treatment options include: Over-the-counter creams and ointments You can treat rashes caused by skin conditions like eczema with moisturizers that are fragrance-free and contain ingredients such as ceramides , glycerin, and mineral oil. Medications include over-the-counter creams and ointments containing the steroid hydrocortisone (for example, Cortizone-10, Cort-Aid, Dermarest Eczema, Neosporin Eczema). These products may help control the itching, swelling, and redness linked to eczema. Prescription creams and ointments In more severe cases, prescription-strength cortisone creams, ointments and solutions are also used. Some options include: Steroids. If you have ongoing symptoms, your doctor may prescribe topical or oral steroid treatment, which can help with itchy and inflamed skin. Topical immunomodulators. For people with mild-to-moderate eczema, topical immunomodulators can help. These medications work by changing the body's immune response to allergens, thereby preventing flare-ups. They include brand name products Elidel and Protopic, Vtama, Adquey ointment, Eucrisa ointment, and Zoryve cream or foam. Shots (injections). Injections can be used to treat rashes that come from certain skin conditions. Dupilumab (Dupixent), for example, is an injectable monoclonal antibody used in patients with moderate-to-severe atopic dermatitis. It clears the itch quickly in most patients. Cortisone shots can also be used in more severe cases. Phototherapy (light therapy). This is another treatment that helps some people with eczema. Phototherapy uses ultraviolet light, either ultraviolet A (UVA) or ultraviolet B (UVB), from special lamps to treat people with severe cases. Risks linked to phototherapy include burning (usually resembling a mild sunburn), dry skin, itchy skin, freckling, skin cancer, and potential premature aging of the skin. Your health care professionals will work with you to lessen any risks. Anti-itch products or allergy medications such as antihistamines. Antihistamines, such as Diphenhydramine or Benadryl , can help soothe the itchiness. Immunosuppressive medications. Medications including steroid shots, prednisone, or other drugs can help clear up a rash by suppressing your immune system. Rashes on the skin aren't usually problematic and respond well to treatment. Some possible complications include: Infection. When you scratch an itchy rash, it opens your skin. This allows pathogens such as bacteria to enter, putting you at risk of infection. Anaphylaxis. In addition to a skin rash, some people can have a severe allergic reaction that is life-threatening, also known as anaphylaxis . The extreme swelling that happens in anaphylaxis can close your air passages. An immediate injection with epinephrine (EpiPen) is needed to act against the allergic reaction. If you have an itchy feeling in your mouth or throat with your skin rash, talk to your doctor about the need for an EpiPen. There are ways to lessen your risk and prevent flare-ups such as those associated with atopic eczema : Reduce stress . Avoid scratchy materials (for example, wool) and chemicals that can be triggers, such as harsh soaps, detergents, and solvents. Moisturize often. Avoid sudden changes in temperature or humidity. Avoid situations that cause sweating and overheating. Immediately wash your hands when you come into contact with something you're allergic to.
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Gardner, MD](https://www.webmd.com/bio/stephanie-s-gardner) on October 21, 2025 - [What Are Rashes?](https://www.webmd.com/skin-problems-and-treatments/common-rashes#091e9c5e80007bf3-1-1) - [Symptoms of Rashes](https://www.webmd.com/skin-problems-and-treatments/common-rashes#091e9c5e80007bf3-1-2) - [Causes of Rashes](https://www.webmd.com/skin-problems-and-treatments/common-rashes#091e9c5e80007bf3-1-3) - [Common Skin Rash Types](https://www.webmd.com/skin-problems-and-treatments/common-rashes#091e9c5e80007bf3-2-4) - [Diagnosing Rashes](https://www.webmd.com/skin-problems-and-treatments/common-rashes#091e9c5e80007bf3-5-7) - [Treatment for Rashes](https://www.webmd.com/skin-problems-and-treatments/common-rashes#091e9c5e80007bf3-5-8) - [Complications of Rashes](https://www.webmd.com/skin-problems-and-treatments/common-rashes#091e9c5e80007bf3-7-11) - [How to Prevent Rashes](https://www.webmd.com/skin-problems-and-treatments/common-rashes#091e9c5e80007bf3-8-12) 6 min read ## What Are Rashes? Rashes are unusual changes in skin color or texture. They normally come from skin inflammation, which can have different causes. There are many types of rashes, including those caused by skin conditions like [eczema](https://www.webmd.com/skin-problems-and-treatments/eczema/atopic-dermatitis-eczema), granuloma annulare, lichen planus, and pityriasis rosea. ![](https://img.lb.wbmdstatic.com/vim/live/webmd/consumer_assets/site_images/articles/health_tools/eczema_in_older_adults_slideshow/1800ss_getty_rf_atopic_dermatitis.jpg?resize=750px:&output-quality=75) Eczema is a general term that describes several different conditions in which skin is inflamed, red, scaly, and itchy. Atopic dermatitis, which can cause an itchy rash, is one of the most common forms of eczema. (Photo credit: Moment/Getty Images) ## Symptoms of Rashes The symptoms that come along with a skin rash depend on the cause and type of rash. Some common symptoms include: - Blistering - Redness - Scaly or dry skin - Similarity to hives - Blotchiness - Swelling or inflammation - Itchy skin - Pain - Infection of the areas of broken skin - Shiny, flat-topped bumps - Large affected areas of skin - Circular-shaped affected areas ## Causes of Rashes Irritants and allergens in the climate/environment can cause rashes on the skin. Other common causes include: - Viral, bacterial, or fungal infections - Skin conditions such as rosacea or eczema - Stress - Skin irritants (including soaps, [skin care products](https://www.webmd.com/beauty/skin-care-products), or some fabrics) - Personal and/or family history of allergies, hay fever, or asthma - Allergic to certain medications, including those that treat high blood pressure, heart disease, and arthritis - Triggering agents from other conditions, such as hepatitis B or hepatitis C Some causes and triggers for rashes are unknown. ## Common Skin Rash Types Some common skin rash types include those caused by skin conditions like eczema, granuloma annulare, lichen planus, and pityriasis rosea. Eczema* Eczema is a general term that describes several different conditions in which skin is inflamed, red, scaly, and itchy. Eczema is a common skin condition, and [atopic dermatitis](https://www.webmd.com/skin-problems-and-treatments/eczema/eczema-basics) (also called atopic eczema) is one of the most common forms of eczema. It can affect adults or children and isn’t contagious. The way eczema looks can vary from person to person. In adults, eczema most often affects the hands, elbows, and back of your knees. In young children, eczema often also shows up on the face, back of the neck, and scalp. Some things can trigger a flare-up of eczema or make eczema worse, but they don’t cause the condition. Hives [Hives](https://www.webmd.com/skin-problems-and-treatments/hives-urticaria-angioedema) is a skin condition that causes raised, itchy bumps or welts. If you have hives, you could be allergic to something airborne or an insect bite. It can also be caused by changes in the temperature and bacterial infections. Contact dermatitis The type of rash that comes from contact dermatitis happens when your body reacts to irritants such as detergents, fragrances, and chemicals. It can cause inflammation, itchiness, and redness. Granuloma annulare Granuloma annulare is a chronic skin condition. A circular-shaped rash with reddish bumps (papules) is a common symptom. Most often, it affects children and young adults. It's slightly more common in girls and is usually seen in people who are otherwise healthy. If you have granuloma annulare, you'll usually notice one or more rings of small, firm bumps over the back of your forearms, hands, or feet. The rash may be mildly itchy. Lichen planus [Lichen planus](https://www.webmd.com/oral-health/oral-lichen-planus) is a common skin condition that causes shiny, flat-topped bumps. They often have an angular shape and a reddish-purplish color. Lichen planus can show up anywhere on the skin but often affects the insides of your wrists and ankles, lower legs, back, and neck. Some people have lichen planus inside their mouth, genital region, scalp, and nails. Thick collections of bumps may occur, especially on the shins. Lichen planus most often affects adults ages 30-70 years. It isn’t common in very young or elderly people. Pityriasis rosea Pityriasis rosea is a common skin rash that is usually mild. The condition often begins with a large, scaly, pink patch of skin on your chest or back. Next, you’ll notice one patch of pink skin quickly followed by more. Your skin will be itchy and red or inflamed. The number and sizes of spots can vary. [Pityriasis rosea](https://www.webmd.com/skin-problems-and-treatments/whats-pityriasis-rosea) affects the back, neck, chest, abdomen, upper arms, and legs. The rash can differ from person to person. Viral conditions. Rashes on the skin can be the result of a viral infection such as measles or chickenpox. Psoriasis. This skin condition causes a rash is thick and scaly and usually appears on the knees, back, elbows, genitals, and scalp. It is permanent and can be passed down from your parents. ## Diagnosing Rashes Diagnosing a skin rash can be hard because the symptoms can be caused by many things. Your doctor will check your skin and ask about your symptoms and may decide to diagnose your rash using tests such as: - Skin biopsy. This involves taking a small bit of skin from the affected area and sending it to a lab for testing for a virus or bacteria. (see symptoms and diagnosis of eczema) - Blood test. Your doctor can diagnose certain diseases by looking at antibodies in your blood. Also, rashes can be the result of systemic conditions, and blood tests can help to check how your organs may be affected. - Allergy test. These tests include skin pricks or patch tests to look for allergens. During the test, your skin is exposed to certain allergens to detect any potential reactions. ## Treatment for Rashes The treatment your doctor recommends will depend on the cause of your skin rash.Some treatment options include: ### Over-the-counter creams and ointments You can treat rashes caused by skin conditions like eczema with moisturizers that are fragrance-free and contain ingredients such as [ceramides](https://www.webmd.com/beauty/what-to-know-about-ceramides-for-skin), glycerin, and mineral oil. Medications include over-the-counter creams and ointments containing the steroid hydrocortisone (for example, Cortizone-10, Cort-Aid, Dermarest Eczema, Neosporin Eczema). These products may help control the itching, swelling, and redness linked to eczema. ### Prescription creams and ointments In more severe cases, prescription-strength cortisone creams, ointments and solutions are also used. Some options include: Steroids. If you have ongoing symptoms, your doctor may prescribe topical or oral steroid treatment, which can help with itchy and inflamed skin. Topical immunomodulators. For people with mild-to-moderate eczema, topical [immunomodulators](https://www.webmd.com/skin-problems-and-treatments/eczema/immunomodulators-atopic-dermatitis) can help. These medications work by changing the body's immune response to allergens, thereby preventing flare-ups. They include brand name products Elidel and Protopic, Vtama, Adquey ointment, Eucrisa ointment, and Zoryve cream or foam. Shots (injections). Injections can be used to treat rashes that come from certain skin conditions. Dupilumab (Dupixent), for example, is an injectable monoclonal antibody used in patients with moderate-to-severe atopic dermatitis. It clears the itch quickly in most patients. Cortisone shots can also be used in more severe cases. Phototherapy [(light therapy).](https://www.webmd.com/depression/what-is-phototherapy) This is another treatment that helps some people with eczema. Phototherapy uses ultraviolet light, either ultraviolet A (UVA) or ultraviolet B (UVB), from special lamps to treat people with severe cases. Risks linked to phototherapy include burning (usually resembling a mild sunburn), dry skin, itchy skin, freckling, skin cancer, and potential premature aging of the skin. Your health care professionals will work with you to lessen any risks. Anti-itch products or allergy medications such as antihistamines. Antihistamines, such as Diphenhydramine or Benadryl[,]() can help soothe the itchiness. Immunosuppressive medications. Medications including steroid shots, prednisone, or other drugs can help clear up a rash by suppressing your [immune system.](https://www.webmd.com/cold-and-flu/immune-system-function) ## Complications of Rashes Rashes on the skin aren't usually problematic and respond well to treatment. Some possible complications include: Infection. When you scratch an itchy rash, it opens your skin. This allows pathogens such as bacteria to enter, putting you at risk of infection. Anaphylaxis. In addition to a skin rash, some people can have a severe allergic reaction that is life-threatening, also known as [anaphylaxis](https://www.webmd.com/allergies/anaphylaxis). The extreme swelling that happens in anaphylaxis can close your air passages. An immediate injection with epinephrine (EpiPen) is needed to act against the allergic reaction. If you have an itchy feeling in your mouth or throat with your skin rash, talk to your doctor about the need for an EpiPen. ## How to Prevent Rashes There are ways to lessen your risk and prevent flare-ups [such as those associated with]() [atopic eczema](https://www.webmd.com/skin-problems-and-treatments/eczema/eczema-basics): - Reduce stress[.](https://www.webmd.com/balance/stress-management/stress-management) - Avoid scratchy materials (for example, wool) and chemicals that can be triggers, such as harsh soaps, detergents, and solvents. - Moisturize often. - Avoid sudden changes in temperature or humidity. - Avoid situations that cause sweating and overheating. - Immediately wash your hands when you come into contact with something you're allergic to. Still Have Questions? [Eczema home remedies](https://www.webmd.com/search?query=Eczema%20home%20remedies%20&rs=true) [Eczema treatment options](https://www.webmd.com/search?query=Eczema%20treatment%20options%20&rs=true) [Eczema causes](https://www.webmd.com/search?query=Eczema%20causes%20&rs=true) [Types of eczema](https://www.webmd.com/search?query=Types%20of%20eczema&rs=true) [Eczema images](https://www.webmd.com/search?query=Eczema%20images&rs=true) Sources Update History Share Print Save SOURCES: American Academy of Dermatology. Australasian College of Dermatology. 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Readable Markdown	Rashes are unusual changes in skin color or texture. They normally come from skin inflammation, which can have different causes. There are many types of rashes, including those caused by skin conditions like [eczema](https://www.webmd.com/skin-problems-and-treatments/eczema/atopic-dermatitis-eczema), granuloma annulare, lichen planus, and pityriasis rosea. The symptoms that come along with a skin rash depend on the cause and type of rash. Some common symptoms include: - Blistering - Redness - Scaly or dry skin - Similarity to hives - Blotchiness - Swelling or inflammation - Itchy skin - Pain - Infection of the areas of broken skin - Shiny, flat-topped bumps - Large affected areas of skin - Circular-shaped affected areas Irritants and allergens in the climate/environment can cause rashes on the skin. Other common causes include: - Viral, bacterial, or fungal infections - Skin conditions such as rosacea or eczema - Stress - Skin irritants (including soaps, [skin care products](https://www.webmd.com/beauty/skin-care-products), or some fabrics) - Personal and/or family history of allergies, hay fever, or asthma - Allergic to certain medications, including those that treat high blood pressure, heart disease, and arthritis - Triggering agents from other conditions, such as hepatitis B or hepatitis C Some causes and triggers for rashes are unknown. Some common skin rash types include those caused by skin conditions like eczema, granuloma annulare, lichen planus, and pityriasis rosea. Eczema Eczema is a general term that describes several different conditions in which skin is inflamed, red, scaly, and itchy. Eczema is a common skin condition, and [atopic dermatitis](https://www.webmd.com/skin-problems-and-treatments/eczema/eczema-basics) (also called atopic eczema) is one of the most common forms of eczema. It can affect adults or children and isn’t contagious. The way eczema looks can vary from person to person. In adults, eczema most often affects the hands, elbows, and back of your knees. In young children, eczema often also shows up on the face, back of the neck, and scalp. Some things can trigger a flare-up of eczema or make eczema worse, but they don’t cause the condition. Hives [Hives](https://www.webmd.com/skin-problems-and-treatments/hives-urticaria-angioedema) is a skin condition that causes raised, itchy bumps or welts. If you have hives, you could be allergic to something airborne or an insect bite. It can also be caused by changes in the temperature and bacterial infections. Contact dermatitis The type of rash that comes from contact dermatitis happens when your body reacts to irritants such as detergents, fragrances, and chemicals. It can cause inflammation, itchiness, and redness. Granuloma annulare Granuloma annulare is a chronic skin condition. A circular-shaped rash with reddish bumps (papules) is a common symptom. Most often, it affects children and young adults. It's slightly more common in girls and is usually seen in people who are otherwise healthy. If you have granuloma annulare, you'll usually notice one or more rings of small, firm bumps over the back of your forearms, hands, or feet. The rash may be mildly itchy. Lichen planus [Lichen planus](https://www.webmd.com/oral-health/oral-lichen-planus) is a common skin condition that causes shiny, flat-topped bumps. They often have an angular shape and a reddish-purplish color. Lichen planus can show up anywhere on the skin but often affects the insides of your wrists and ankles, lower legs, back, and neck. Some people have lichen planus inside their mouth, genital region, scalp, and nails. Thick collections of bumps may occur, especially on the shins. Lichen planus most often affects adults ages 30-70 years. It isn’t common in very young or elderly people. Pityriasis rosea Pityriasis rosea is a common skin rash that is usually mild. The condition often begins with a large, scaly, pink patch of skin on your chest or back. Next, you’ll notice one patch of pink skin quickly followed by more. Your skin will be itchy and red or inflamed. The number and sizes of spots can vary. [Pityriasis rosea](https://www.webmd.com/skin-problems-and-treatments/whats-pityriasis-rosea) affects the back, neck, chest, abdomen, upper arms, and legs. The rash can differ from person to person. Viral conditions. Rashes on the skin can be the result of a viral infection such as measles or chickenpox. Psoriasis. This skin condition causes a rash is thick and scaly and usually appears on the knees, back, elbows, genitals, and scalp. It is permanent and can be passed down from your parents. Diagnosing a skin rash can be hard because the symptoms can be caused by many things. Your doctor will check your skin and ask about your symptoms and may decide to diagnose your rash using tests such as: - Skin biopsy. This involves taking a small bit of skin from the affected area and sending it to a lab for testing for a virus or bacteria. (see symptoms and diagnosis of eczema) - Blood test. Your doctor can diagnose certain diseases by looking at antibodies in your blood. Also, rashes can be the result of systemic conditions, and blood tests can help to check how your organs may be affected. - Allergy test. These tests include skin pricks or patch tests to look for allergens. During the test, your skin is exposed to certain allergens to detect any potential reactions. The treatment your doctor recommends will depend on the cause of your skin rash.Some treatment options include: ### Over-the-counter creams and ointments You can treat rashes caused by skin conditions like eczema with moisturizers that are fragrance-free and contain ingredients such as [ceramides](https://www.webmd.com/beauty/what-to-know-about-ceramides-for-skin), glycerin, and mineral oil. Medications include over-the-counter creams and ointments containing the steroid hydrocortisone (for example, Cortizone-10, Cort-Aid, Dermarest Eczema, Neosporin Eczema). These products may help control the itching, swelling, and redness linked to eczema. ### Prescription creams and ointments In more severe cases, prescription-strength cortisone creams, ointments and solutions are also used. Some options include: Steroids. If you have ongoing symptoms, your doctor may prescribe topical or oral steroid treatment, which can help with itchy and inflamed skin. Topical immunomodulators. For people with mild-to-moderate eczema, topical [immunomodulators](https://www.webmd.com/skin-problems-and-treatments/eczema/immunomodulators-atopic-dermatitis) can help. These medications work by changing the body's immune response to allergens, thereby preventing flare-ups. They include brand name products Elidel and Protopic, Vtama, Adquey ointment, Eucrisa ointment, and Zoryve cream or foam. Shots (injections). Injections can be used to treat rashes that come from certain skin conditions. Dupilumab (Dupixent), for example, is an injectable monoclonal antibody used in patients with moderate-to-severe atopic dermatitis. It clears the itch quickly in most patients. Cortisone shots can also be used in more severe cases. Phototherapy [(light therapy).](https://www.webmd.com/depression/what-is-phototherapy) This is another treatment that helps some people with eczema. Phototherapy uses ultraviolet light, either ultraviolet A (UVA) or ultraviolet B (UVB), from special lamps to treat people with severe cases. Risks linked to phototherapy include burning (usually resembling a mild sunburn), dry skin, itchy skin, freckling, skin cancer, and potential premature aging of the skin. Your health care professionals will work with you to lessen any risks. Anti-itch products or allergy medications such as antihistamines. Antihistamines, such as Diphenhydramine or Benadryl[,]() can help soothe the itchiness. Immunosuppressive medications. Medications including steroid shots, prednisone, or other drugs can help clear up a rash by suppressing your [immune system.](https://www.webmd.com/cold-and-flu/immune-system-function) Rashes on the skin aren't usually problematic and respond well to treatment. Some possible complications include: Infection. When you scratch an itchy rash, it opens your skin. This allows pathogens such as bacteria to enter, putting you at risk of infection. Anaphylaxis. In addition to a skin rash, some people can have a severe allergic reaction that is life-threatening, also known as [anaphylaxis](https://www.webmd.com/allergies/anaphylaxis). The extreme swelling that happens in anaphylaxis can close your air passages. An immediate injection with epinephrine (EpiPen) is needed to act against the allergic reaction. If you have an itchy feeling in your mouth or throat with your skin rash, talk to your doctor about the need for an EpiPen. There are ways to lessen your risk and prevent flare-ups [such as those associated with]() [atopic eczema](https://www.webmd.com/skin-problems-and-treatments/eczema/eczema-basics): - Reduce stress[.](https://www.webmd.com/balance/stress-management/stress-management) - Avoid scratchy materials (for example, wool) and chemicals that can be triggers, such as harsh soaps, detergents, and solvents. - Moisturize often. - Avoid sudden changes in temperature or humidity. - Avoid situations that cause sweating and overheating. - Immediately wash your hands when you come into contact with something you're allergic to.
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