Please Help!!!?

I was decorating my chritmas tree and when i went up high 2 put an ornament on, i stepped down wrong and now my ankle hurts, not liek a sprain but i just really hurts wen i put pressure on it a certain way or lean a certain way. I have our first basketball game of the season in two days so if you no anyways to help in heal faster, like ceratin ice teqniques and anything u can do to help is much appericatied! thanks!