I think most of the guys who played under the basket in high school got that, me included. Red, swollen, can't move it, stinging pain, a little itchy bother.
I always was careful to go up with my other hand, not the shooting hand, to rebound. Also, when attempting a shot block, same thing, save your shooting hand. Took half the season to heal, usually after the Bball season was over.
I still have 5 crooked fingers from breaks and sprains, no biggie. Badge of stupid, that's all.