Eczema, also called atopic dermatitis, is manifested by a rash of "weeping" blisters. Later, the area may become dry and scaly. Eczema occurs most frequently in the bends of elbows and knees and on the face and neck. It is common in children, many of whom also have hay fever and asthma. Some children benefit when an allergenic food is found and removed from their diet.