Mite acne refers to folliculitis. When you have folliculitis on your back, you can take general treatment or medication under the guidance of your doctor in combination with your own situation. 1. General treatment; it is recommended to keep clean and hygienic in life, take baths regularly, change bed sheets and bedding regularly, ventilate regularly, eat a light diet, avoid spicy and stimulating foods, and quit smoking and drinking. 2. medication: you can follow the doctor’s instructions to choose the local application of topical antifungal drugs such as ketoconazole cream, can be supplemented with 2% ketoconazole lotion or 2.5% selenium disulfide shampoo bath. When the lesions are generalized and the inflammation is severe, oral antifungal drugs such as itraconazole can be combined. Folliculitis on the back is recommended to consult a doctor in a timely manner, under the guidance of the doctor standardized treatment, do not self-medication.