Seborrhoeic eczema (also Seborrheic dermatitis
AmE, seborrhea) is a skin disorder affecting the scalp, face, and
trunk causing scaly, flaky, itchy, red skin. It particularly affects the sebum-gland
rich areas of skin.
detergents such as sodium laureth sulfate may precipitate a flare-up, as they strip moisture from the top layers of the skin, and
the drying property of these can cause flare-ups and
may worsen the condition.