A sore on the back should be the result of a significant bacterial infection on the back. In this case, the patient should first visit the dermatology or general surgery department of the regular hospital to have the doctor evaluate the specific condition of the sores occurring on the back. If the localized sore is not very large and the inflammation is not very serious, oral, topical, or intravenous antibiotics can be used to control it; if the localized wound is large and the localized pus is serious, the wound can be debrided, drained, or disinfected. Patients at home, can not be more effective treatment of back wounds, and after the doctor for effective treatment of wounds, but also need to determine whether it is necessary to change the medicine again, cleaning and disinfection, bandaging.