First you should apply something cold such as ice cubes so as to cool the blood vessel around that area. Then you elevate the bruised area so as to control the flow of blood. You can apply warm cloth for about 10 minutes to the bruised area. For more information you can visit http://www.wikihow.com/Get-Rid-of-Bruises.
Arnica!!! You get it at health food stores. Google it and find out where to get it in your area. I got hit with a softball on my face and this stuff took it away in 2 days. It comes in gel that you put on the bruise or pill form that you put under your tongue. I used both so I'm not sure which one worked best.