No one wants to deal with butt rash, but it happens. Itchy, red bumps can seemingly pop up out of nowhere, leaving you to try to find a way to discretely scratch your bum throughout the day. Of course ...

Medically reviewed by Susan Bard, MD A rash under the breast often results from heat, moisture, eczema, allergies, fungal ...

When a blotchy red rash pops up on your skin, it's not easy to know exactly what the cause is. With thousands of skin diseases to choose from, deciphering your skin can be a challenge. But with skin ...

A common symptom of Lyme disease is a bullseye-shaped rash. However, many other conditions may cause a similar rash, including ringworm, fixed drug reactions, and allergic reactions to insect bites.

A rash on one or both eyelids is usually a sign of dermatitis from environmental irritants, allergens, or daily activities. Sometimes accompanied by itching and swelling, a rash can become an ongoing ...

But there’s one side effect that’s well established but little known and still puzzling to doctors: the “keto rash” or prurigo pigmentosa. This rash fits the man’s case perfectly—red, raised, itchy ...

Norovirus doesn’t usually cause a rash, though some people develop hives. A rash that accompanies stomach symptoms may suggest a different stomach virus or inflammatory bowel disease. Norovirus is a ...

Inverse pityriasis rosea usually causes a rash on the armpits, groin, neck, or face. The rash may clear up on its own, and medications such as antihistamines can help with itching. Inverse pityriasis ...

Diagnosis When diagnosing potential causes of itching skin without rash, a doctor will likely consider the most common causes first. This includes excessively dry skin or as a side effect of new ...