Oily hair recommended 2-3 days to wash 1 time, the specific number of times need to be determined according to individual circumstances. Oily hair people are generally oily skin, mainly due to the sebaceous glands secretion is more vigorous caused by 1-2 days without washing hair can lead to oily hair, and even more dandruff will appear. Therefore, it is recommended to wash your hair every 2-3 days, and you can choose a shampoo with oil control properties. If in summer, you can wash your hair every other day, if you work outdoors or labor, you can increase the number of times you wash your hair. However, it is usually not recommended to wash your hair too often to avoid damaging your scalp and causing your hair to become more oily. In addition, people with oily hair need to pay attention to quit smoking and drinking in daily life, avoid staying up late, and ensure regular rest and relaxation. It is recommended to eat a light diet and avoid spicy and irritating foods as much as possible.