In the two weeks before surgery, you will stop all aspirin, NSAIDs, fish oil, vitamin E, and herbal supplements that thin the blood. Smoking or nicotine use of any kind must stop at least six weeks prior, as it directly compromises fat graft survival and healing. You will fast from food and drink after midnight the night before your procedure, and you will need a trusted adult to drive you home and stay with you for the first 24 hours.