Dandruff can be divided into physiological and pathological types, physiological dandruff without special treatment, as long as the hair can be washed diligently; for pathological dandruff, such as seborrheic dermatitis, ichthyosis, etc., to give the general treatment, medication and so on. 1. Physiological dandruff: the production of dandruff itself is a normal physiological process, which is a part of the human body’s exterior skin cuticle scales shedding. In the scalp, because of the presence of hair, the normal process of dandruff shedding can appear blocked, keratin flakes will be retained between the hair shaft. Physiological dandruff generally does not need to be treated, as long as you keep your scalp clean and wash your hair regularly. 2. Pathological dandruff: mainly caused by certain diseases, part of the scalp cells in the case of incomplete maturity of the block shedding, the formation of dandruff visible to the naked eye. Such as seborrheic dermatitis, ichthyosis and so on. For seborrheic dermatitis caused by dandruff, can be appropriate to use ketoconazole or selenium disulfide and other detergents to wash the hair, can play a role in alleviating the role of; if the scope of the wider, serious symptoms, but also oral antifungal drugs for treatment, such as itraconazole and so on. Ichthyosis is a group of skin dryness and accompanied by ichthyosis-like dandruff keratinization disorder skin disease, can be applied externally with urea cream, lactic acid ointment, etc., which can reduce the dryness of the skin and the role of moisturizing; for the serious symptoms of the patient, can be taken orally to alleviate the condition of vitex drugs such as isotretinoin and so on. The above medications should be used in accordance with medical advice. Dandruff symptoms, it is best to go to the hospital in a timely manner to clarify the cause of the disease, follow the doctor’s instructions to standardize the treatment, to avoid blindly use their own medicine.