Following your plastic surgeon's post-op instructions can definitely contribute to the survival of your fat graft.You will likely experience a bit of discomfort as well as some swelling immediately following surgery and you'll want to avoid stressing the injection areas for up to 3 weeks in order for the extracellular matrix surrounding your fat grafts to have a chance to withstand minor stresses.Our post-op instructions include wearing surgical tape on facial areas for about 5 days, sleeping on your back with your head elevated for the first week, and avoiding any rubbing of the face for at least 2 weeks.The patient plays a very important role in helping the fact grafts to survive and thrive.That being said, the surgical technique used during the fat graft procedure also plays a crucial role in the success of survival. All fat grafting techniques are not created equal and the success of your outcome is highly dependent on how each of the steps of the surgery are performed.Be sure to consult with a board certified plastic surgeon experienced in performing facial fat grafting to discuss, in detail, the fat transfer procedure steps that will be used - including liposuction (harvesting) of the fat, centrifugation and processing of the fat, and reinfection of the fat.Best Wishes!