Will medical marijuana help for chronic back pain?

Short term: This is only a short-term solution. Perhaps a better approach is to use the techniques related to mindfulness. See work by jon kabat-zinn or joan borysenko.

Not much: It will create more problems by focusing on recreational use by those that may only need a decent shave and haircut. Chronic pain needs to be evaluated and appropriately treated. Must be taken seriously! making this form as an end solution just adds to the list of "disabled".