Muscular diastrophy. Of this disease.

My right hand sholuder look like dislocation of bone but no as bhu doc. say it is muscular diastrophy & sweeling of muscle . It is just near the shoulder in between elbow & sholuder , my right hand has become very slim in compare of left hand . I'm not able to move my hand properly , cary havy weight etc. It's genetic i had got this from my dad he have this problem in his whole body & he had got this disease from her mother but my dad brother didn't get affected but my dad 2 sister's get affected . As doc. Says that it could be raise in your whole body their is no cure for this only do exercise & try not to increase . So , plz i request you all who is seeing my this post plz help me & tell me the cheapest cure of this disease .