Dandruff and large pieces of consideration is ringworm, seborrheic dermatitis and other diseases caused by the doctor’s guidance to take medication. 1. Tinea capitis: it is a common skin disease, caused by dermatophyte infection, mainly manifested as hair loss with scales. Under the guidance of the doctor, oral itraconazole, ashwagandha, terbinafine and other drugs. Can also be used externally antifungal shampoo, such as ketoconazole lotion. 2. Seborrheic dermatitis: it occurs in the head, face, etc. The cause of the disease is not clear, may be related to the growth of Malassezia bacteria, can appear greasy scales with itching and other symptoms. Can use topical drugs under the guidance of the doctor, such as tacrolimus ointment, salicylic acid preparations, etc., and if necessary, oral ketoconazole, tanshinone and other drugs. Dandruff and large pieces of dandruff to the hospital in a timely manner, to identify the cause of the disease to take symptomatic treatment, to avoid delaying the condition.