See what three common allergy rashes—atopic dermatitis, contact dermatitis, and hives—look like. Learn about symptoms, causes, and treatments.

Food allergy rashes are just one symptom of a food allergy. They can also be mistaken for other skin conditions. Learn more about what a food rash looks like, and what you can do about it.

Rashes in children—including around the mouth—are common. They are more likely to be caused by something other than a food allergy. Here are some other potential causes of a rash around the mouth: ...

Medically reviewed by Daniel More, MD Ring rash is a skin irritation that shows up under or around a ring, often a wedding ...

Certain foods may also trigger eczema flare-ups. In rare cases, a food allergy causes the rash. When a rash appears around the mouth, it can be itchy or cause a burning sensation.

Babies often develop rashes, and finding a cause is often difficult. However, rashes on a baby’s face may result from a cow milk allergy. A dairy allergy rash may be raised, discolored, and ...

Sun rash is a red, itchy rash that appears because of exposure to sunlight. ... Some people who get sun rash live with a rare photodermatosis called solar urticaria (sun allergy hives).

People often think that hives are a response to an outside trigger — an allergic reaction — but that’s almost never the case with urticaria that lasts for weeks. C.I.U. is usually caused by ...