Yes, Arnica and Bromelain help with bruising, as does pineapple juice. However, these effects are rather minimal if not negligible. It is much more important to avoid all blood thinners (aspirin, ibuprofen, coumadin, plavix, fish oil, vitamin E, etc.) for at least 7 days prior to surgery. Your surgeon should let you know what medications those are. Obviously, if you take prescription blood thinners, it is important that you first check with the prescribing physician if it's safe to stop the medication temporarily. Furthermore, head elevation and icing for the first 24 hours post-OP are very important. Minimizing sodium intake 5 days before surgery and at least 7 days after surgery also helps to minimize the swelling. Good luck!