Googled 'marijuana good for ms' and one of the results returned was a simple news article about the April 1st 2007 edition of Nature Medicine that indicates cannabis to be a disease modifying drug (DMD). Since cannabis acts as a nervous system regulator, slowing down nerve impulses, it makes sense that it could possibly slow down the actions of those immune system antibodies that are responsible for the demyelination for nerve insulation. Since that action, demyelination vis antibodies, doesn't appear to be a primary concern of the immune system, other immune system reactions, such as fighting off a cold or infection, those should be relatively or completely unaffected.
Furthermore, it's been proven that opiate based pain killers do nothing for neuropathic pain, only lateral pain caused by physical injury.
Honestly, if a thousand people we polled 'Do you think cocaine is worse than marijuana?', I'd wager that 99% of them would say yes. Odd how Glaucoma patients can receive cocaine infised eye drops, but mention the word 'marijuana' and the doctor slams the door in their face.
If marijuana were discovered in some rainforest tomorrow, it would be touted as the next wonder drug. But because a bunch of dirty hippies smoke it while dancing to a Fish concert, it's evil.
Seems I have but one of two choices; live my life in a bed riddled with pain, or get high and live a life free of both that pain and that bed. Now if doctors were only that logical.