People who always have acne can be treated by improving their lifestyle habits, improving their diet, paying attention to hygiene, and using reasonable medication, as follows: 1. Improve lifestyle habits: develop a good lifestyle, quit smoking and drinking. Cigarettes contain a lot of nicotine and tar, which are very irritating to the skin. In addition, do not stay up late, stay up late will make serious endocrine imbalance, producing acne, while keeping a happy mood, strengthen physical exercise, improve their immunity; 2, improve diet: pay attention to a healthy diet, less sweets, less oil and salt, do not eat spicy, stimulating, hot food, such as chili, pepper, etc.; 3, pay attention to hygiene: pay attention to personal hygiene, avoid squeezing acne with your hands, use a weak alkaline cleanser to wash your face. Get rid of facial oil and avoid clogging of pores with dirty things. After washing your face, rub some aloe vera cream, aloe vera gel or fresh aloe vera on the red pimples, which has a certain inhibiting effect on the pimples; 4. Reasonable medication: use antibiotics as prescribed by your doctor, such as penicillin, azithromycin, etc. You can also use salicylic acid drugs, such as aspirin and sodium salicylate. It can be combined with topical heat-clearing, dampness-eliminating and acne-eliminating drugs, such as erythromycin ointment, clindamycin gel, vincristine cream, adapalene gel and salicylic acid cream, which can effectively control acne growth.