Hi Matt,
Great advice and your Oli Bari sounds really good.
I have some experience with finger sprains being both a classical guitar student and volleyball player at the same time many years ago. At a certain point you might want to try what my orthopedist showed me. He said that I should move my finger but in a stabilized way. He showed me how to take a 1/2 width of athletic tape along the two sides of the finger then do a small loop with the tape above and below the injured knuckle. Hope it heals quickly for you.
Ron
