The process of septic drainage is mainly disinfection, debridement, drainage and bandaging. Usually, after the local trauma, did not pay attention to the care work, resulting in the emergence of infection caused by abscess, then need to be under the guidance of the doctor for the treatment of abscess incision and drainage. Before the operation, it is necessary to decide how to anesthetize according to the condition of the abscess, and local infiltration anesthesia is usually chosen, because in the process of treatment, in addition to drainage of purulent secretions, it is also necessary to remove necrotic tissues, which may produce painful symptoms, and some patients may be intolerant. Generally, before the operation, it is necessary to disinfect the local area, and then clean up the necrotic tissue and purulent secretions inside. Care should be taken to remove to a fresh red layer of tissue, then rinse with iodine or saline, and finally place drainage strips, as well as local dressings, usually without sutures to close the wound. During drainage treatment, daily dressing changes are required to replace the drain strips, drain the drainage fluid, and assess the effectiveness of the treatment. If there is no longer any significant drainage fluid, the drain strips may be removed. Secondly, oral antibiotics such as amoxicillin and cefradine need to be taken as prescribed to prevent infection. When the symptoms of pus appear after the need for drainage treatment, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor, to avoid self-operation to aggravate the infection.