This too is interesting as I never saw a use in the drug, components are already being man made to treat nausea, and it can help in pain relief, glaucoma and multiple sclerosis. As with any drug or narcotic there are side effects that need to be known.

This summarizes the diseases for which marijuana can reduce the pain of treatment well. However, the culture around its recreational use has been so damaging, that just making it legal without a doctor's prescription would not be a good idea.