I Fell About A Month Ago And Hurt My Pinky

I fell about a month ago and hurt my pinky knuckle. There was no swelling but it did get black and blue. there is no pain when i open, close or wiggle my fingers, but my pinky hurts a lot if I splay my fingers apart. I have been buddy taping them together and that seems to have helped but I still have pain. I also used to crack my fingers on occasion, now I can't even think of cracking the pinky because of the immense pain it causes. Any ideas?