I suppose the needle could have hit a nerve,
and since you have actually lost use of wrist
and fingers, you do need to go to a regular doc and let him evaluate the situation, and he can then refer you to perhaps a neuro who can figure out the best way to fix what has happened to you. On the other hand, could be swelling has temporarily compressed some nerves, and whenever the sore place where the shot was calms down, so too would your hand function return.