What is dermatitis herpetiformis (DH)?

Dermatitis herpetiformis (DH) is an itchy, blistering skin condition that’s a form of celiac disease. The rash usually occurs on the elbows, knees and/or buttocks, and is characterized by its bilateral nature; both knees (and/or both arms) are affected, seldom just one. Many people with DH have no digestive symptoms and only about 40% of them have the positive blood tests (serology) for celiac disease. However, they almost always have the same, gluten-dependent intestinal damage as those with the more common symptoms of celiac disease.

Unless otherwise specified, the information pertaining to celiac disease also pertains to people with DH. In addition to following a strict gluten free diet, DH is also commonly treated with a medication called Dapsone.