A baby boy who was born only 3 months ago had erythema and pinpoint papules on his face and forehead, some in a row, some with yellow exudate, some rashes vermiculated and some crusted. When the parents took the child to the hospital, the doctor said the child had “ringworm”, the medical name for which is “atopic dermatitis”. Another 7-year-old girl often had itchy skin, small papules and rough skin around the rash on both sides of her elbow and knee fossa. Wang Lian Yun, Department of Allergy, Shanghai Renji Hospital