Boils should be incised and drained when they appear to be suppurating and have a fluctuating sensation, and the main operation steps include disinfection, anesthesia, incision, and drainage. Abscess incision is needed after boil suppuration, firstly, disinfection around the boil, then local anesthesia with lidocaine to reduce patient’s pain, usually use counterpicked executive knife method to incise the abscess, pay attention to the abscess should be completely drained cleanly, flush the wound with 3% hydrogen peroxide, then saline, the pus cavity can be added with Vaseline gauze, to avoid infection affecting the healing, and then use sterile gauze to fix it. After incision and drainage of abscess, attention should be paid to the dryness and cleanliness of the wound, while avoiding spicy and stimulating food, paying attention to rest, and changing the medicine on time.