Acne is a kind of non-inflammatory pimple formed after the blockage of the sebaceous gland ducts of hair follicles, which belongs to the mild acne. It can be relieved by general life conditioning, medication and physical therapy, but there is a lack of treatment means to completely eradicate acne. 1. Life management: patients are advised to pay attention to the cleanliness of the skin on the back, and can use water for bathing to minimize the blockage of pores by oil on the back; avoid the use of oily cleansing products; avoid a high-fat diet; ensure enough sleep and avoid staying up late; and avoid extruding and scratching acne to avoid causing infection. 2. Medication: When the general life conditioning is ineffective, the use of medication can be considered. Common medications include adapalene gel, tazarotene gel and other medications that help to dissolve and discharge acne, benzoyl peroxide, azelaic acid and other medications with anti-inflammatory effects, and when the condition is serious, minocycline, doxycycline and other medications can be taken orally. 3. Physical therapy: When the effect of medication is not good, physical therapy such as fruit acid peeling can be considered. It is recommended that patients with back acne develop good living habits and dietary habits, and when the general conditioning is ineffective, consult a doctor in a timely manner and choose the most appropriate treatment under the guidance of the doctor, avoiding the use of medication, so as to avoid delays in the condition, or even the development of severe acne.