Acne is considered to be caused by acne, folliculitis and other diseases manifested as pimples. Different diseases have different treatments, which can be removed by changing lifestyle habits, medication, physical therapy and so on. 1. Acne: It is caused by excessive secretion of sebaceous glands, abnormal keratinization of hair follicle openings, and infection by Propionibacterium acnes, etc. It occurs mostly in sebaceous gland-rich areas such as the face, back, and chest, and the lesions can be whiteheads, blackheads, and pustules, and the patients feel that their backs are covered with pimples. Patients should avoid high sugar food, spicy stimulation and dairy products, and ensure regular work and rest. In addition, patients should follow the doctor’s instructions to use drugs such as adapalene and vinpocetine to reduce the symptoms, and use antibacterial drugs, such as fusidic acid, when the inflammation is obvious. Serious patients can take oral doxycycline, isotretinoin, etc., for treatment. 2. Folliculitis: Folliculitis can occur in any hair follicle part of the body, such as the back, face, buttocks, etc., the clinical manifestation of the follicle as a unit of red papules, can be accompanied by redness, swelling, pain. Mupirocin, clindamycin and amoxicillin can be used for lesions caused by bacterial infections, and ketoconazole, econazole and fluconazole can be used for lesions caused by fungal infections. If boils and carbuncles are formed, incision and drainage are needed to drain the pus, and patients can also choose physical therapy such as ultrashort wave and far infrared rays to assist in the treatment. Back are acne suggests that patients go to the hospital in a timely manner, identify the cause of the disease, as soon as possible for treatment.