After appendicitis surgery, the wound is red and swollen, indicating inflammation of the wound, possibly with localized hard nodules, and possibly with localized suppuration. The patient has wound redness and swelling, the wound will be accompanied by pain, local skin temperature increase, and may also lead to an increase in systemic body temperature, the blood check is elevated white blood cells, neutrophils are also elevated. The wound sutures need to be removed and the wound opened for drainage. If necessary, the wound can be flushed with hydrogen peroxide, as well as filled with iodophor gauze and then covered with gauze on the outside of the wound. You can change the medication twice a day, and later, depending on the wound healing, you can change the medication once a day. At the same time, anti-infection treatment should be intensified, and bacterial culture should be done for the bacteria contaminating the wound, if necessary, to selectively use antibiotics.