Acne vulgaris is a chronic inflammatory skin disease of the sebaceous glands of hair follicles common in young people. It occurs on the face, neck, upper chest and back where sebum is produced. The characteristic damage is blackheads, papules, pustules, cysts, nodules and often scarring. It is an adolescent disorder and 90% of adolescents suffer from it to varying degrees. The main pathogenesis includes the following: 1. The sebaceous glands increase in size and secretion during puberty due to the influence of androgens. 2, acne patients have abnormal epithelial keratinization of the hair follicles, making the follicle opening smaller, and sebum discharge is blocked and stagnates at the follicle opening, forming acne. Microorganisms in the hair follicles such as Propionibacterium acnes and Sporotrichia furfur add value and produce enzymes that break down sebum, and the free fatty acids formed stimulate hair follicles and sebaceous glands causing inflammatory reactions. 4. It is related to genetic factors, the patient’s constitution, immune response, etc. The main treatment measures: anti-keratinization, anti-inflammatory and sebum secretion reducing drugs can be applied, such as vincristine capsules, azithromycin, etc., and appropriate supplementation of B vitamins. It is advisable to use drugs to promote lung and clear heat, and to strengthen the spleen and resolve dampness. Preventive measures: Pay attention to less spicy and greasy food, eat more vegetables and fruits, keep clean and hygienic, do not squeeze the area with your hands to avoid infection. Maintain a regular lifestyle, avoid staying up late, etc.