Bruising can be limited through proper care before, during, and after surgery.
Before surgery, products that thin the blood should be avoided. The most obvious of these are aspirin and most of the anti-inflammatory agents such as ibuprofen. Susprisingly many other foods, additives, herbs, some vitamins can increase risks as well. You should be able to obtain an entensive list from your surgeon or through an internet search. Sadly, alchohol can also increase bruising and should be avoided as well. On a positive note, there seems to be some benefit to taking an herbal supplement, arnica before and after surgery
During surgery bruising can be limited by injecting medications that constrict the blood vessels, cauterizing bleeding points, keeping blood pressure at a normal level, and sometimes placing drains to remove blood that may accumulate following the procedure. These are generally things that are managed by your surgeon.
After surgery the same products should be avoided for a period of time. In addition keeping the head elevated is of value and any acitivity that elevates the blood pressure should be avoided.
I hope this will help you to a quick and successful recovery after your facelift. Good luck and best wishes to you.