Samer H. A. Zaid Kaylani, MD

The rash on this 4-week-old girl had appeared 5 days earlier on her face as thickened scales on an erythematous base and subsequently spread to the scalp, shoulder, chest, abdomen, and extremities. A few bullae were noted on the neck and hands. Initial treatment with cephalexin failed to control the rash, and the infant was admitted to the hospital for further evaluation.