Itchy head if caused by the scalp is not clean should pay attention to clean, if caused by seborrheic dermatitis can be used selenium sulfide lotion, if caused by eczema can be used according to the condition of the topical hormone drug therapy. 1. Physiological reasons: If you do not pay attention to scalp hygiene, do not wash your hair in a timely manner, you will be prone to head itching, you should develop good hygiene habits. 2. Seborrheic dermatitis: If there is seborrheic dermatitis, it is easy to appear excessive sebum secretion of the scalp, dandruff, itchy symptoms, you can use shampoos containing selenium sulfide, coal tar and other substances, and at the same time, pay attention to avoid staying up late, and eat less high oil, high sugar foods. 3. Eczema: If there is eczema on the scalp, itching will occur, you can use glucocorticosteroids such as Hasinide solution and other treatments. If the scalp itching is serious, you should go to the hospital in time to check, the use of the above drugs should follow the doctor’s instructions.