Acne in normal people usually recurs from one to several years, with the majority lasting from 3 to 5 years, depending on the individual. Acne is a disease of the skin appendages, with inflammation of the hair follicles and surrounding areas as the main manifestation. It is mostly seen in different rashes such as papules, nodules, pustules and pimples. It is common in adolescence and can occur in both men and women. The age of prevalence is 10-19 years old, while a small number of people develop it after the age of 30. Under normal circumstances, acne can be cured without treatment in 3-5 years, but if the condition is severe, timely medical treatment is required. Treatment is mainly based on symptomatic treatment such as anti-inflammation and inhibition of sebaceous gland secretion function. A small number of people can be cured in about 1 year after treatment, but there are cases that last for about 10 years without healing. In addition, acne patients should pay attention to maintaining good living habits, avoiding spicy and stimulating foods, staying up late for long periods of time, and avoiding mental tension.