Dermatitis herpetiformis (DH) is a chronic, autoimmune skin disorder that is characterized by itchy, blistering skin rashes. It is an extremely itchy and uncomfortable condition, and can cause significant pain and discomfort.
The rash associated with DH is usually red, raised, and covered with small blisters. The rash may appear in symmetrical patterns on both sides of the body, such as on the elbows, knees, buttocks, or back. It can also appear on the face, scalp, and upper torso. The rash can be intensely itchy, and scratching the area can cause pain and further irritation.
The underlying cause of DH is unknown, but it is believed to be related to an autoimmune disorder. People with DH have an abnormal response to gluten, which can cause an immune reaction that leads to the rash. Treatment typically involves avoiding foods that contain gluten, and taking medications to reduce the inflammation associated with DH.
Although DH is not a life-threatening condition, the pain and discomfort associated with it can be severe. The rash and itching can be intense and can make it difficult to concentrate, sleep, or complete daily tasks. In addition, the rash can last for weeks or months, and may require long-term treatment to keep it under control.