Dandruff in the hair, usually seborrheic dermatitis, usually also accompanied by itchy scalp, easily greasy, the face can appear greasy red spots, and in serious cases can cause hair loss. For the treatment of seborrheic dermatitis, first of all, you should control your diet, try to eat less sweet and greasy food, eat more fruits and vegetables, and replenish enough vitamins. Secondly, it is important to live a regular life, to get enough sleep and to avoid excessive mental tension and anxiety. For the treatment of seborrheic dermatitis, the commonly used topical medications are Celebrex and selenium disulfide lotion, Celebrex is ketoconazole lotion. For patients with serious conditions, oral medications can also be used. Commonly used oral medications include antifungals, antibiotics, glucocorticoids, vitamins, and you can ask your specialist to guide your treatment.