Nano scarless double eyelids generally reduce swelling within 1 week, and recover close to natural in about 15-30 days. Nano scarless double eyelid mostly refers to the double eyelid buried line method, commonly used in clinical positioning buried line method, short recovery time, no hospitalization, 1-3 days after surgery may appear swelling or itching and other situations, cold compress, iodophor disinfection, local application of erythromycin to relieve symptoms. Generally, swelling can be gradually reduced in about 7 days after surgery, and basic recovery can be made in about 15-30 days. During the recovery period, attention should be paid to observation, if no inflammatory reaction and infection occurs, it can quickly return to nature, if there is itching, inflammation or infection should be quickly dealt with. At the same time, attention should be paid to proper eye opening and closing exercises after surgery, so that the skin can form memory points and make the suture adhesions more solid, so that the eyelids will look more natural and beautiful after the edema is eliminated. In addition, it is necessary to ensure a light diet after double eyelid surgery and avoid spicy and stimulating foods to avoid aggravating or recurring symptoms such as swelling.