Seborrheic eczema is a skin condition – with redness and flaking – that occurs primarily on the face and hairy head. Seborrheic dermatitis occurs in about 5% of the population, slightly more common in men than women. The condition usually develops at the beginning of puberty and is not contagious. It rarely occurs in children, except in small children (“mountain”). This condition is not related to internal diseases. The course of seborrheic eczema is variable, with periods of rest alternating with times when the skin disease is more active. Eczema can be treated well, but may return after treatment is stopped.