This 13 year old boy developed an itchy allergic contact dermatitis from a topical antibiotic which was placed on a surgical wound on his left wrist for 10 days and occluded with a sterile dressing. The dermatitis was discovered when the dressing was removed and was treated with a high potency topical steroid. However, 2 days later he developed a widely disseminated itchy red papular eruption that responded quickly to a tapering course of oral prednisone. Autoeczematization or an "id" reaction, manifested as a widespread presumably immunologically mediated eczematous dermatitis, can occur in association with any intense localized dermatitis such as atopic dermatitis, allergic contact dermatitis, seborrheic dermatitis, or dermatophytosis.
red excoriated lichenified plaque in shape of dressing with disseminated red papules