Folliculitis is a purulent inflammation that occurs as a result of bacterial or fungal infection of the entire hair follicle. There are several methods of eradicating folliculitis on the back. First, local therapy: under the guidance of the doctor available 1% neomycin ointment, mupirocin ointment, fusidic acid ointment or 2% iodine tincture and other external treatment. Secondly, systemic therapy: when the lesions are extensive and there is obvious pus, broad-spectrum antibiotic treatment should be given. If conditions can be sent to the pus culture, and drug sensitivity test, choose more effective drugs. Third, immunotherapy: patients with recurrent episodes can try multivalent staphylococcal bacterial vaccine. Fourth, try ultraviolet radiation sterilization treatment. Usually should pay attention to skin hygiene, avoid washing, scratching, avoid spicy stimulating food.