Invasive laser includes: facial grinding, laser wrinkle removal, partial superficial swelling removal, partial grinding and other less invasive treatments. No water for one week after surgery, prevent infection, normal moisturizing, high sun protection, avoid spicy and stimulating diet, eat more VA, VC food and pay attention to rest. Steps 1.Wet compress before scab fall off (blue skinning) + infection ointment scald cream 2.Efficient moisturizing after scab fall off to prevent scar growth 3.After scab fall off, pay attention to sun protection (SPF30+/PA+++) to prevent postoperative pigmentation.