what is seborrhea
Seborrhea or seborrheic dermatitis is a skin disorder in which the sebaceous glands of the skin produce an excessive amount of sebum.Seborrhea typically affects the back, face and flanks causing scaly, flaky, itchy, red skin.eborrhea or seborrheic dermatitis is a skin disorder in which the sebaceous glands of the skin produce an excessive amount of sebum.