Symptoms of Dermatitis Herpetiformis
Onset of dermatitis herpetiformis can be acute or gradual. Vesicles, papules, and urticarial lesions are usually distributed symmetrically on extensor aspects of the elbows and knees and on the sacrum, buttocks, and occiput. Lesions itch and burn. Because itching is intense and skin is fragile, vesicles tend to rupture quickly, often making intact vesicles difficult to detect. Oral lesions may develop but are usually asymptomatic. Iodides and iodine-containing preparations may exacerbate the cutaneous symptoms.