The 12th day after double eyelid surgery is still swollen, it can be considered that the wound has not recovered, the wound is infected, excessive use of eyes and other reasons, it is recommended to deal with specific conditions. 1. Wound is not recovered: the recovery period of wound is about 1~2 weeks, due to the different metabolic rate of individual skin, some people are still swollen on the 12th day after surgery, which is normal, you can relieve the swelling and pain by applying cold compress. 2. Wound infection: no good care of the wound area, easy to lead to wound infection, not only the phenomenon of swelling, there will be a lot of secretion, you can clean up the wound area, under the guidance of the doctor to apply erythromycin ophthalmic ointment. 3. Excessive eye use: often stay up late or face electronic products for a long time, excessive eye use, will lead to postoperative eye swelling. You need to pay attention to moderate eye use, you can do some eye opening and closing exercises to promote local blood circulation. If your eyes are still swollen on the 12th day after double eyelid surgery, we suggest you to go to a professional aesthetic hospital or ophthalmology hospital and deal with it in a reasonable way.