Acne (commonly known as acne) can be treated, and correct and standardized treatment can achieve the desired results. In addition to standardized treatment, the following conditions should be noted to prevent the triggering or aggravation of acne: 1. 2, diet: eat less and less high sugar, high fat, wine, spicy and other stimulating food and greasy food; eat more vegetables (bean sprouts, bok choy, artemisia, winter melon, loofah, bitter melon, water chestnut) and fruit. Eating more food containing long fiber, adjusting the function of the digestive system, and keeping the bowels open, are also effective in preventing and treating acne. Recently, Spencer et al. conducted a systematic review of the relationship between diet and acne, suggesting that dairy products (especially milk) can increase the risk of acne and are related to the severity of acne, so eating less dairy products also has a role in preventing acne. 3. Local cleaning: Wash your face carefully, each time with water, soap or cleansing milk, but do not use strong alkaline soap, 2-3 times a day, and remove the mixture of oil, dander and bacteria on the skin surface with a little force when washing, but the number of cleaning should not be too many, otherwise it may aggravate it; 4. Cosmetics: water-based, in principle, should not use ointment cosmetics, avoid using nutritional skin care products, powder skin care and beauty Cosmetics and ointments and creams containing glucocorticoid ingredients. 5, attention: prohibit finger squeezing facial papules, acne, pustules, to prevent aggravation or the formation of cysts, scarring.