Finger advice after punching a netball?

Omg that is freaky because i did exactly the same thing on thursday!! except its my first finger. I haven't broken it but it hurts so much i taped it so i dont have to move it which does help sort of. Apparently i have badly sprained it but i'm not sure if you can even sprain your finger but just tape it and see if it helps. Even at the hospital they dont even really do anything for fingers.Its up to you if you want to swim or do gym but its for you to decide. Hope it gets better cos i wich mine would :( x