Suggest Treatment For Ankle Pain

Hi I am suffering from Haemophilia factor IX deficicncy. All major joints are efffected . I am unable to move without pain i n ankle joint . Swelling in right ankle joint is not subsided so far from last 6 months. Due to this I am to be moved to step withpain in ankle joint . is there is any excercises fron ankle joint to reduce the pain or also suggest any medicines to reduce the pain. sir