Hair and face oil may be genetic factors, improper diet, seborrheic dermatitis and other factors, need to strengthen personal hygiene, light diet, external salicylic acid ointment, selenium disulfide lotion and other drugs to improve the situation of oil. 1. Genetic factors: hair and face oil may be hereditary, androgen levels in the body is too high, there is no better way to improve the general, keep the local clean and clean. 2. Improper diet: eating too much greasy, spicy, stimulating food, smoking and drinking, can promote sebaceous gland secretion, resulting in hair and face oil. Daily should be balanced diet, light diet, avoid eating too much greasy and spicy stimulating food, after dietary modification can relieve the symptoms. 3. Seborrheic dermatitis: when suffering from seborrheic dermatitis, there is chronic inflammation of the skin, inflammatory factors will stimulate the sebaceous glands to increase the secretion of the hair and face oily, can be used externally with ketoconazole cream, salicylic acid ointment, selenium disulfide lotion, glycerine lotion and other drugs to improve. There may be other reasons for oily hair and face, it is recommended that patients adjust their habits in time, go to the hospital if necessary, to clarify the cause of the disease, and take relevant treatment measures under the guidance of the doctor.