seborrheic dermatitis, a common chronic inflammatory skin disease characterized by greasy scales and yellowish crusts. Common sites are the scalp, eyelids, eyebrows, face, external surfaces of the ears, axillae, central chest, breasts, groin, and gluteal folds. In some people seborrheic dermatitis is associated with paralysis agitans, diabetes mellitus, malabsorption disorders, epilepsy, or an allergic reaction to gold or arsenic. Treatment includes selenium sulfide shampoos, topical and oral corticosteroids, topical antibiotics, proper therapy for any underlying systemic disorder, and avoidance of sweating and external irritants. Kinds include cradle cap, dandruff, seborrheic blepharitis.
