Acne on the back, you can take topical medication and systemic medication to relieve the symptoms; and regarding acne marks, physical therapy and medication are usually recommended. 1. Acne treatment: (1) local medication: if the acne is relatively small without purulent reaction can be applied topically vita-acid ointment, combined with inflammation and infection, it is recommended to use erythromycin ointment, mupirocin ointment, fusidic acid ointment and so on. (2) systemic medication: can follow the doctor’s instructions oral vita acid, inflammation and infection is serious, and then oral cefixime, cefaclor anti-inflammatory. 2. Acne mark treatment: (1) physical therapy: can be applied externally to remove scars, lighten the pigmentation marks of the drugs, such as vitamin A acid ointment, polysulfonic acid mucopolysaccharide cream, etc. (2) Physical therapy: dye laser treatment can be used to lighten pigmentation marks. Back acne as well as acne marks, but also pay attention to skin hygiene, and adhere to the bath, change clothes, can reduce the stimulation of the epidermis, to achieve the role of auxiliary treatment, specific should follow the doctor’s instructions.