I Bumped My Hand Going Down A Slide . My

I bumped my hand going down a slide . My tendon rolled over my middle knuckle . I have pain when I bend my pinky and ring finger down. I did this yesterday and worked today . It is very swollen and bruised . I looked it up on YouTube and there is a video of the tendon rolling over the middle knuckle. This is exactly what happened to me. What should I do?