How can one treat finger injuries?

Q: About 2 months ago while playing, the middle finger of my right hand struck the wall vertically and the impact was on the finger nail bending the finger backwards. I had pain and swelling exactly at the central joint of the finger but I neglected it. This still persists even after one month. I had the X-ray after 45 days of accident and, according to the doctor, there is no major problem. I can bend my finger circularly well but I cannot take any weight on it. The swelling is present and I feel pain when I hit with this hand/palm. Could you please suggest what I need to do and can this cause any problem in the future?

A:The finger injuries takes long time to heal completely and if there is no fracture then there is no other treatment to be done except hot formentation.