Seborrheic dermatitis is a chronic inflammatory condition typically affecting particularly oily areas of the skin. The scalp, face, ears, or trunk may be involved. Mild cases may range from simple dandruff to involvement of the periorbital areas about the eyebrows, nasal alae, and periauricular area, as well as the EAC. Lesions may be mildly erythematous and slightly raised with a greasy scale. They may be pink or orange in color and demonstrate thickening of the plaques and lichenification if chronic. Malassezia furfur, a lipophilic yeast, is thought to play at least some role in the development of this condition. Treatment consists of topical steroids and keratolytics, as well as medicated shampoos for scalp involvement.