To avoid acne, life conditioning and medication are needed, as follows: 1. Life conditioning: special attention needs to be paid to life and living, avoiding sweet food, greasy diet, spicy and stimulating diet, such as raw onion, raw garlic, chili, mustard, coffee and so on. It is also necessary to keep the bowels open, happy mood, need good rest, sleep; 2, drug treatment: acne is more scattered, the condition is light can only be used topical clindamycin phosphate gel or acne cryptone gel, acne is more serious, the distribution is more intensive and the appearance of pustules need to oral isotretinoin soft capsule or vitamin ester capsule for treatment.