Acne on the chest and back can usually be treated with general therapy, physical therapy, and medication. Pimples, or acne, are chronic inflammatory diseases of the sebaceous glands of the skin. It can be improved by the following measures: 1. General treatment: pay attention to rest, ensure enough sleep; take a bath often, keep the skin on the chest and back clean; eat a light diet, avoid spicy and stimulating, sweet and greasy food; keep a relaxed and happy mood, don’t be over-anxious and nervous. 2. Physical therapy: you can use red and blue light irradiation and other local treatments, can be anti-inflammatory and sterilization, promote the growth of new skin cells, enhance the activity of skin collagen cells, so as to promote the treatment of acne and the recovery of local skin lesions. 3. Medication: Topical medications such as adapalene gel can be used to treat acne by regulating the keratinization process and reducing the formation of microcomedones by regulating the differentiation of follicular epithelial cells. Oral antimicrobial medications such as minocycline and roxithromycin can also be taken to treat localized infections if necessary. If the patient has acne on the chest and back, it is recommended to go to the dermatology department of the regular hospital in time, under the guidance of the specialist for treatment, and avoid blind self-medication, so as not to cause adverse consequences.