Google up or the like "Medical Marijuana Research" and make your own decisions.
If allowed by scrip where you live and it seems to help? More power to you. But usually it's seeming to me more of a block on how your pain to brain connections are functioning. At times lowering the pain levels thru other meds but keeping the brain working seems to me much more important overall. But, that's just one person's opinion.
If it helps you get thru life as a fully functioning human bean then great!
More power to you! - j