Do U Know Why My Left Pinky Finger Is Still

do u know why my left pinky finger is still hurting, its been about 2 months. it was hit with a basketball, and hurted, but ungfortunately before it could heal it would get hit about 3 more times, then spiked on from a volley ball. now i am unable to bend it fully, only a about half way. only the front joint of my pinky hurts. i have not went to the doctor, as io expected it to heal right away... i was wrong, any suggestions/ tips i can do at home to bring back my fully strenghed pinky? thanks