Has anyone checked her for brachial neuritis? I have a suspicion. This might be what it is. The clinical name is Parsonage Turner syndrome. I currently have this , mine started on May 10. I always put on steroid packs and pain medication. I still have partial paralysis of my arm and am in PT. if you suspect this could be it the neurologist needs to do a brachial plexus MRI as well as a nerve conduction study.. good luck I hope possibly this might help.