Wound crusting with yellow pus, according to the size of the wound pus range decision as far as possible to empty, but do not force extrusion, to avoid causing the spread of infection. If the scope of pus is relatively superficial, surgical excision and incision can be carried out to empty the wound of purulent secretions, with 3% hydrogen peroxide, saline, iodophor and other disinfectants in order to traumatize the wound, and then bandaged with sterile gauze, and change the medication on a regular basis. When the pus cavity is deeper, you can go to the hospital to use drainage strips and drainage tablets to drain the pus, and note that you should change the medicine regularly. For smaller scabs, mupirocin ointment can be applied to the wound to prevent infection. It is recommended to go to the hospital in time, ask the specialist to treat the wound, and follow the doctor’s instructions to take amoxicillin, cefaclor and other antibiotic treatment.