Acne is generally referred to as acne and folliculitis. Common treatments for acne or folliculitis on chest during adolescence include general treatment, medication and physical therapy. 1. General treatment: chest acne, should pay attention to clean, advisable to use warm water and neutral soap to clean the skin, in order to reduce the secretion of oil. At the same time, maintain a good work and rest time and optimistic mood, ensure adequate sleep, avoid staying up late. Diet should be light, reduce the consumption of greasy, spicy stimulating food. 2. Drug treatment: patients can be under the guidance of the doctor, the application of retinoic acid drugs (such as adapalene gel), antibiotics (such as lincomycin, etc.) and azelaic acid and other drugs in the local topical application. If folliculitis is combined with fungal infection, it can also be combined with topical antifungal treatment such as sertaconazole. If the acne condition is serious, oral isotretinoin and doxycycline can be taken as prescribed by the doctor, and in severe cases, glucocorticosteroids such as prednisone can be used in small doses for a short period of time as appropriate. 3. Physical therapy: mainly using photodynamic therapy for treatment, can be combined with the application of red and blue light irradiation, in order to reduce the inflammatory response of the chest. Adolescent chest acne, patients should go to the regular medical institutions, should actively cooperate with the doctor’s treatment. At the same time, the main skin care and cleanliness should be avoided, avoid squeezing the acne with hands, so as not to cause infection.