Double eyelids are the most common cosmetic surgery. Double eyelid surgery should be treated with cold compress for the first 48 hours to relieve swelling and pain, and hot compress can promote absorption after 48 hours. Avoid spicy food, alcohol and tobacco after operation. Smoking affects wound healing. Try to eat more fruits and vegetables with more vitamins. Avoid strenuous exercise, otherwise it will bleed and aggravate swelling.