I. Postoperative medication change, suture removal and wound care The medication change on the 3rd day after surgery, the suture removal on the face and mucous membrane area is recommended 7 days after surgery, and the suture removal on the trunk extremities, palmoplantar area (palm of hand, palm of foot) 14 days after surgery. There is no painful stitch removal, so there is no need to be nervous. Three days after the stitches are removed, bathing is allowed. Keep the wound dry and the dressing clean after surgery. Avoid eating spicy and stimulating food, smoking and alcohol, and strenuous exercise. Post-operative scarring So far all surgeries leave scars, and the formation of scarring varies greatly from site to site and from suture to suture. The use of fine suture technology can minimize the scar. Post-operative scarring can be effectively improved with topical scar removal medication or laser treatment. Patients with keloid have a high chance of abnormal scarring after surgery. The postoperative scar will enter the hyperplasia, erythema, hyperpigmentation, and stabilization phases. Itching or pain in the hyperplastic and erythematous scars is normal and will be slowly relieved as the scar matures. Post-operative follow-up is also an integral part of the treatment process. Scan the QR code after surgery, upload basic patient information and laboratory or pathology results, and send photos of the surgical site regularly to help follow up the condition, so that abnormal changes after surgery can be detected and treated at an early stage.