Ummm help with a bruise?

ok so i just had two days of 6 hr cheerleading practice and we were stunting, and the fliers hip, leg,and butt kept falling on the same part on my arm and now have this really nasty bruise. so i was wondering, whats the fastest way to get rid of a bruise and are there and ointments or meds to help it go away ? also is there anything to help take the pain away?