Shoulder, elbow and knee pains. Etc. ,

My mother is under medication for knee and joint pains(back, elbow, shoulders ). She was 49 yrs old and was really facing difficulty in doing basic household works. She was under medication from 2 years but didn't notice any improvement in her condition. Following is her medication: Altraday, steoxa 200, collasin-UC, mediciss-K27, Q-TEN Plus tablets. Doctor suggested to take altraday only is there is sever pain. It helps to relieve the pain temporarily. He suggested to not do any exercise, walking etc., literally like do nothing. I've been following this from 2 yrs and i didn't notice any change, also whenever she tries to some basic works she notice significant pains at different joint areas(shoulders, knee etc.,) looks like bones have very weak. I was confused on how to move forward with her medication and wanted to take second opinion or suggestions to improve her condition. Is it like she won't be able to do basic works and has to sit idle without walking etc.,