Use steak or a bag of frozen peas and tape it around your eye for an hour or so... a can of coke left in the freezer will work too.
In the meantime, use Covergirl foundation to cover up the bruise, its very good.
hmmm yes Maybelline is quite a good brand too, its always handy to carry the foundation around in your purse/pocket coz you can touch up on the makeup anytime and keep looking great all day.