Severe joint swelling and pain.

First I had problem with my right wrist with swelling and pain...so I had consulted doctor. Doctor told that this looks like some infection due to an old fracture. Did x ray and MRI nothing came in both reports. Doctor prescribed pain killer and inflammation medicine and told to do ice and hot water treatment. This was like 4 weeks back and still my wrist joint looks swollen and pains when touched...I have visited many doctors but no one is able to figure out what is the real cause for this issue. And now from yesterday my right ankle joint is swollen and pains very badly and I am not even able to get up and do toilet on my own...my son and wife are helping me to reach toilet. Now I am trying to do same ice and hot water treatment for my ankle as well but nothing looks improving. Please let me know what to do for this and how I can atleast be able to walk again... I am ready for video consultation as well but do not know which doctor to search for...any help is really appreciated.