To be a double eyelid surgery, you'd better go to a hospital. The effect will be a little sneaky at first. After about a year, the eye edema will disappear and become more natural. Try not to use your eyes too much after operation, and don't use your eyes too much under strong light. Try to have more rest and less fatigue. Try not to eat cold and spicy food. If necessary, you can take some anti-inflammatory drugs and get some anti-inflammatory needles.