Many factors contribute to bruising after Liposuction. With the all pervasive tumescent technique, it is expected that your surgeon not be hurried and that she/he waits twenty minutes after putting numbing fluid in to get maximal vasoconstriction or tightening of the blood vessels and a blanched appearance to the skin over the fatty areas.Avoid aspirin, Motrin, ginseng, gingko, garlic, St. Johns Wort and the list goes on and on for at least 5-7 days before and after your surgery. Lastly, take Arnica Montana and Bromlain, which is found in fresh pineapples, for at least 2 days before and after surgery. Bruises that are slow to reside may respond to certain laser light therapy designed to break up the blood elements in the bruised skin.