Duke dermatologists diagnose autoimmune skin diseases like pemphigus, pemphigoid, scleroderma, morphea, dermatomyositis, dermatitis herpetiformis, vasculitis, lupus, and Sjögren’s syndrome -- all of which occur when the body’s immune system attacks healthy skin. The cause of these diseases is unknown but may relate to problems with the immune response. Our experienced doctors are dedicated to researching the causes of these rare skin diseases, testing new therapies, and providing relief from the itchy, blistering, or painful rashes that may affect the skin, mouth, and eyes.