my sister who is 24 years old,suffers a discogenic disease.from 2years ago she has been suffering kind of pain on her back mostly on right part of her lower back but not in midline ,it strtches from that point to her knee (under right knee).the pain gets worse while working or bearing weight on right leg.MRI showed some kind of inborn stricture in her last disc.the doctor prescribed calcium eff,mefnamic acid tablet,baclofen tablet,diclophenac topical ointment. but the result was not stisfactory .please help.