It is important to drink more water, eat more fresh vegetables and fruits, and avoid eating large amounts of spicy and stimulating foods, greasy foods and sweets to avoid more sebum secretion and greasier scalp. Zinc sulfate and B-complex vitamins can be given orally to help reduce the symptoms of greasy scalp, and excessive washing is not allowed when the scalp is greasy to avoid compensatory secretion of more oil. If combined with dandruff, you can also try to cooperate with giving selenium disulfide lotion, ketoconazole lotion, topical use twice a week. For combined seborrheic dermatitis with itching, you can cooperate with oral antihistamines to stop itching.