Back acne may be caused by folliculitis, acne, etc. Different medications can be chosen according to the cause. 1. Folliculitis: back acne may be folliculitis, if it is caused by bacteria folliculitis, you can use topical antibiotic ointment, such as mupirocin ointment, fusidic acid ointment and so on, if it is clear that the fungal infection is caused by, you can use topical antifungal drugs, such as ketoconazole, terbinafine, bupropion, and other drugs. 2. acne: back acne may also be acne, can be used externally retinoic acid cream, adapalene gel and other retinoic acid drugs, if the serious cases can also be oral clindamycin, erythromycin, fusidic acid and other antimicrobial drugs, if necessary, you can choose the physical therapy, such as photodynamic therapy, laser therapy, chemical peeling treatment. Vitamin A drugs have a clear teratogenic effect, so they are prohibited during pregnancy and preparation for pregnancy. If you want to get rid of back acne, it is recommended to go to the hospital in time and under the guidance of the doctor for active treatment. Do not use medication without authorization to avoid adverse consequences.