Depending on the cause of acne, it is important to keep the face clean and fresh. Washing the face with warm water regularly helps to remove excess sebum. It is not advisable to use alkaline soap to wash your face, as it can damage the lipid film of the face and cause mite infections, which can lead to acne. It is also not easy to use poor cosmetics and oily cosmetics after washing your face to avoid pore blockage and aggravation of the condition. In terms of diet, you should pay attention to eating less spicy, sweet, fried, greasy and stimulating food, such as tobacco, alcohol, coffee, strong tea, etc. Eat more fresh vegetables, fruits and vegetables. Eat more fresh vegetables, fruits, grains and other high vitamin and high fiber foods, because over-eating sugar and starchy foods can increase the secretion of sebaceous glands; over-eating spicy and irritating foods can easily make the blood vessels around the hair follicles dilate, causing the symptoms to worsen. You should eat more foods containing vitamin A and vitamin B, because foods containing vitamin A can promote the regeneration of epithelial cells and prevent hyperkeratosis of hair follicles, which can make sebum discharge smooth and reduce the occurrence of acne; foods containing vitamin B, which participate in sugar and fat metabolism, can play a role in regulating sebaceous secretion. It is also important to have a happy spirit, combine work and rest, not to be anxious, not to be nervous, and to pay attention to sleep time. It is also important to treat acne-related diseases, such as menstrual disorders, chronic gastrointestinal diseases, indigestion, etc. Avoid using drugs that cause acne and aggravate acne, such as androgens, corticosteroids, iodine, bromine, benzene, barbiturates, etc.