Suggest Treatment For COPD And Arthritic Pain

My wife suffers from COPD and also she gets arthritic pains, she has tried all kind of pain killers and some maker her ill and others do no help
, but when she id treated iv with antibiotics for COPD she is given Prednizolone and all the pains in her body vanish and her breathing improves. She seems to cope with 5 x 5 mlgs of this tablets can she continue taking them