Oily hair may be related to seborrheic dermatitis or some physiological factors. There is no so-called most effective method in the treatment, you need to use anti-sebum secretion drugs under the guidance of the doctor, at the same time, pay attention to hygiene, pay attention to diet control. 1. Seborrheic dermatitis caused by greasy hair: mainly with sebaceous gland secretion function is exuberant, oil secretion increased, in the treatment can be in the doctor’s instructions to apply some inhibit sebaceous gland secretion of drugs, such as external use of selenium disulfide lotion. 2. Physiological factors caused by hair greasy: mainly with greasy spicy diet and do not pay attention to hygiene. The main improvement is to maintain a light diet, avoid too greasy and spicy food, and pay attention to hygiene. When choosing shampoo, avoid choosing oily shampoo. When the phenomenon of oily hair, it is recommended to go to the regular hospital, clear cause, under the guidance of the doctor to follow the doctor’s prescription medication.