I have a sprained finger what do I do?

My ring finger on my left hand is sprained. It's the middle knuckle that is sprained. I was playing keeper fro my high school soccer team two months ago. And in a game it bent side ways I guess. It's fine moving it front and back, but when I put pressure on the side, that is when I feel the pain. I have tried icing it and resting and that hasn't helped. I have also tried "buddy taping" it, and that hasn't helped either. Does anyone have any other suggestions about what I can do, without going to the doctor? I would greatly appreciate it. Thanks guys for any answers.