Thats a fairly long time for a wrist injury. It would be best to check with a doctor to ensure your wrist is healing correctly. You may have scar tissue. Applying massage therapy to your wrist may also help.
I sprained my wrist and elbow about 4 months ago and only my elbow healed, my wrist still hurts (haven't been taking meds)?
I reccommend you go and see your local doctor.
You really need to see a Orthopedic Surgeon here as you may have damaged the Carpal Tunnel or the Median nerve here which may require special treatment including surgery to repair. The older you get it will only get worse so this is one of those things you need to take care of now instead of waiting. Good luck