Dandruff is usually seen in seborrheic dermatitis, as well as furuncles and psoriasis of the scalp. So if there is more dandruff, first of all need to diagnose clearly, if it belongs to seborrheic dermatitis, you can generally use some antihistamine drugs orally, you can also use hassinide solution topical application. If it is scalp psoriasis, then you can take oral silver capsules, or vitamin A capsules, and then you can use topical Haxinaid or Kinnoull cream, or you can use local Zetia shampoo to wash your hair, to control the symptoms of dandruff.