How Should Spondylosis Causing Back, Shoulder And Leg Pain Be Treated?

I am having problem of spondylosis for the last 1.5 years, now I am having problem of back pain for the last 6 months, Whether back pain is related to spondylosis. spondylosis is identified through MRI scan, Doctor advised me to do some exercise and i had taken some tablets around 2 months. Some days I am feeling little pain in shoulder, but back pain is making problem, some time pain is going to the leg also. Shinu A. Qatar