It affects the sebaceous (oily) regions of the scalp. It causes patches of greasy skin covered with itchy, crusty, powdery flakes. The flakes may be white or yellow. Scratching these spots can ...

Symptoms of seborrheic dermatitis include: Red, itchy scalp Scaly patches on scalp Flakes ... in scales that are thick and silvery/white Dry cracked skin Burning sensations How to treat it ...

Symptoms include bumps on the scalp and scaly, dry patches of skin underneath the hair. Stress and dehydration can make dandruff worse, as can itching. Using a special dandruff shampoo can often ...