Suggest Medication For A Sprained Ankle

I sprained my ankle 2 weeks ago at rugby practice. I heard a popping sound, but didn't think it was too bad. I went to the college nurse and she gave me crutches to use. Currently, I have a moderate amount of pain and still limp. Bruising is still present and so is the swelling. I can hardly run or do anything more than walk. How long until I heal? Will I be able to play in a game in 4 days?