I'm going to be 100% serious with you. You can't lose fat in one area. You will see that if when you lose fat, it'll be throughout your whole body. Facial fat diminishes with age, or extremely unhealthy-near death inducing weight loss, which will only end up making you look emaciated and sick. A fuller face, is better than a sunken-in face . Doing facial exercises like the ones on youtube, will target facial muscles, which will help keep your facial skin from dragging down with gravity as you age. Collagen boosting supplements and pills, will help keep your skin looking fuller and more youthful. You can try lecithin, which is a serum sort of thing (I have it at home) , if your problem is water retention, it breaks it down and allows for the swelling to reside. But it will only work if your problem is water retention , if not, then there's not much you can do to reduce facial fat only.

.http://cielclark.hubpages.com/hub/how-to-lose-weight-by-not-drinking-water-with-meals

This is something I wrote after losing 45 pounds. It really helps how your body deals with food

You have to start with your body. You may check out this site for a no surgery fat process: http://www.nyccosmeticdermatology.com/lipo-zeltiq.htm