Increased dandruff is often seborrheic dermatitis, the principle is that androgen secretion is too much or not much. Local androgen receptor excess will stimulate the sebaceous glands to secrete sebum, scalp will be oil, often washed very quickly oil, the treatment is to use drugs to inhibit oil secretion, specifically: 1, oral drugs: the most effective is oral drugs, but long-term use of side effects; 2, topical drugs: you can consider topical drugs to inhibit the secretion of sebum, such as drugs containing Vitamin A acid, which is relatively more effective is ointment, but Ointment type of drugs must pay attention to wipe on the scalp, especially lesbians, the requirements must be wiped on the scalp to be effective, so need to help family members, 2 times a day, morning and evening wipe, generally 1 week can be effective; 3, lotion: if there is no way to let other people to help wipe the topical medication or inconvenience, can be used to treat the lotion, the effect may be slightly worse than the topical medication, but the advantage of the convenience and can be used on a continuous basis. Dandruff treatment may recur after a period of time, this time with shampoo and other topical drugs to treat the relatively good, the beginning of the shampoo or topical drugs 1 week 2 times, maintenance after 1 week only 1 time can be.