A rash is a change in the skin due to skin irritation. Most rashes go away on their own or require only minor treatment. Some rashes may need medical attention. Some rash symptoms are redness, itching, bumps, redness, and swelling. Some causes of rashes are allergic reactions; plants such as poison ivy; or irritation due to jewelry, chemicals, or makeup. Rashes are also sometimes symptoms of another condition, as with impetigo or scabies. Treatments vary based on the cause, but many can be treated with medications. Follow the links below to find WebMD's comprehensive coverage about what causes a rash, what it looks like, how to treat it, and much more.
Poison Ivy, Oak & Sumac Symptoms
Read about the symptoms caused by poison ivy, poison oak, and poison sumac.
Do I Have Eczema, and How Do I Treat It?
Here's what your doctor will check and what treatments she'll consider if you have eczema.
Common Skin Rashes
The the basics on some common types of skin rashes, including eczema, granuloma annulare, lichen planus, and pityriasis rosea.
What Causes Jock Itch? Can You Prevent It?
If you have an itchy rash, “down south,” it could be jock itch. Here’s what you need to do to treat and prevent it.
3 Questions About Eczema: Symptoms, Causes, and Prevention
WebMD interviews Asriani M. Chiu, MD, for answers to three top questions about eczema symptoms, eczema causes, and how to prevent eczema.
Sensitive Skin: Is It a Myth?
Sensitive skin is a common complaint but hard to diagnose. No two people have the same symptoms or react to the same triggers.
Slideshows & Images
Guide to Contagious Rashes
Some skin problems come from touching another person's skin or something they touched. Here's what to watch out for and suggestions for what you can do.
Slideshow: A Visual Guide to Viral Rashes
Your skin breaks out in itchy rashes, painful blisters, or crusty sores. Allergies? Eczema? The answer could be a viral infection.
Slideshow: Below the Belt: Rashes, Bumps, and Lumps
Wondering about that unusual bump or rash? WebMD shows you what's going on down there and whether it could be a genital wart or cyst, skin tag, or herpes.
Picture of Morbilliform Drug Eruption
Drug hypersensitivity reaction. Eczematous, targetoid rash on the trunk occurring 1 week after the administration of a systemic cephalosporin.