what is seborrheic dermatitis

Seborrheic dermatitis is a common skin condition that causes a scaly rash on oily areas of the body, such as the scalp, face, sides of the nose, eyebrows, ears, eyelids, chest, armpits, groin area, or under the breasts. It can cause a variety of symptoms, from dandruff to a rash on the affected area. Seborrheic dermatitis is not contagious, and it doesnt cause permanent hair loss. It is also called dandruff, seborrheic eczema, and seborrheic psoriasis. Unlike dandruff, seborrheic dermatitis may develop on more than the scalp. It can appear on the ears, eyebrows, beard, or skin around the nostrils. Seborrheic dermatitis is usually caused by a combination of genetic and environmental factors. The trigger is usually an inflammatory reaction to excess Malassezia yeast, which normally lives on the skins surface. There isnt a cure for seborrheic dermatitis, but treatment can alleviate symptoms like itch and lessen, and sometimes clear, the rash. Treatment options include medicated shampoo or other products, topical antifungals, corticosteroids, and calcineurin inhibitors. If you think you could have seborrheic dermatitis, it is recommended to see a board-certified dermatologist for an accurate diagnosis and treatment plan.