Dermatitis herpetiformis is a chronic, extremely itchy rash consisting of papules and
vesicles. Dermatitis herpetiformis is associated with sensitivity of the intestine to
gluten in the diet (celiac sprue).
Dermatitis herpetiformis usually begins in the twenties, though
children may sometimes be affected. It is seen in both men and women.
Though the cause of the rash is unknown, dermatitis herpetiformis is frequently
associated with gluten (a protein found in cereals) sensitivity in the small bowel.
Dermatitis herpetiformis is usually extremely itchy. The
vesicles or papules usually appear on the elbows, knees, back, and buttocks. In most
cases, it is highly symmetric. Symptoms of dermatitis herpetiformis tend to wax and wane.