Patients with a history of hypertension should have their blood pressure under 130 mmHg on the day of surgery. Patients with a history of eye disease such as glaucoma or myopic eye correction surgery should inform the doctor in advance. The patient must be accompanied by one person for post-operative matters; 2 ice packs and regular antibiotics (3-day supply, can be provided or purchased at the hospital) should be provided before surgery. Post-operative instructions: 24 hours of dressing; ice for 3 days (start ice immediately after surgery, the more the better within 3 days); oral antibiotics for 3 days; no painkillers; avoid sitting up and down, less spicy food and skin irritating food for 2 weeks; stitches to be removed after 6-7 days for external incision, no stitches for internal incision; keep the wound clean and dry for one week, no water; follow up after 1 month for discomfort.