Or seborrhea is a common skin disease that looks similar to psoriasis, eczema, or an allergic reaction. And it can appear on your body as well as your scalp.
Symptoms:
Skin flakes (dandruff) on your scalp, hair, eyebrows, beard or mustache
Patches of greasy skin covered with flaky white or yellow scales or crust on the scalp, ears, face, chest, armpits, scrotum or other parts of the body