My mom was on Lipitor for 2 yrs and chose to get off of it. Seve...

My mom was on Lipitor for 2 yrs and chose to get off of it. Several weeks ago she got increasingly week in her legs and arms to where now she cannot walk. I have her in a wheelchair and seeing several doctors. The most recent Dr seems to be very dedicated. She's had so many tests and it is discouraging. They are not sure but think she has dermatomyositis. Her legs are with sores which look like a bad case od dermatititis. Is there any cure ahead? What do you recommend we do next? Sr. Therese Ann Ridge, her daughter