Eczema

Eczema, an inflammatory, chronic, noncontagious disease of the skin caused by allergy and hypersensitivity. The term is loosely used to include many skin conditions more properly included under dermatitis. Eczema is characterized by a number of cutaneous lesions, such as macules, papules, pustules, vesicles, scales, and crusts. Macules are nonelevated skin spots. Papules are hard, circular, and elevated. Pustules are papularlike lesions that contain pus, and vesicles are small skin blisters that contain fluid. Eczematous lesions are usually accompanied by an exudation of serous fluid and by intense itching. One-third to one-half of all cutaneous conditions are eczematous.