dislocated my middle finger last year racing.
i poped it back in and rode the rest of the track but then it totally locked up. miss out on both my race runs
it took a good 3 weeks before it could grip the handle bar properly without having pains.
i rode for 2 weeks in france 3 weeks after doing it and i think it did more harm than good, i managed to pop it out another 3-4 times while out there.
cartlidge is all over the place and there are lumps both sides of the middle knuckle, where i dislocated it.
i cant fully bend my finger into my palm and it clicks everytime i extend it.
rest it mate is the best medicine. if you can visit the doc's you may need a small op if the disloaction was bad as the cartlidge maybe damaged and when it heals it will fuse on the wrong place (like mine did) leading to problems in later life

same here......
 but if you want it to heal properly rest it. you will do more harm than good if you keep riding.
if you dislocated it the muscles are probably torn, and the cartlidge around the bone is damaged too. al that takes time to heal.
riding when its sore will lead to it getting inflamed and the tissue not having a chance to recover.
yes strpp it up my all means if you ride

i bent my thumb back very far about 6months ago and it still hurts like a very bad sprain.. at the time it was agony.. taking AGES