Acne on the back may be caused by acne, folliculitis, seborrheic dermatitis, etc. Anti-acne medications, antibiotics, and glucocorticosteroids can be applied to remove them. 1. Acne: Increased sebum secretion and abnormal levels of androgen secretion may cause back acne, which can be removed by topical application of anti-acne medications such as benzoyl peroxide gel and isotretinoin gel. 2. Folliculitis: a purulent skin disease caused by localized infection of hair follicles, which can lead to back acne, can be removed by topical application of antibiotic drugs such as fusidic acid cream and mupirocin ointment. 3. Seborrheic dermatitis: seborrheic dermatitis caused by excessive secretion of sebum on the back leading to changes in epidermal function, appearing back acne, you can use topical dinexed cream, hydrocortisone butyrate cream and other glucocorticoid drugs to remove. Specific drugs should follow the doctor’s instructions for the correct use, if the back acne is serious should be timely consultation, under the guidance of the doctor’s clear diagnosis and standardized treatment. Daily attention to maintain local cleanliness and hygiene, avoid water temperature too cold, too hot stimulate the back skin.