Most certainly yes!!!!!!!!! If it helps someone in pain then it is a cheap and safe form of relief compared to most prescription meds.
No it's not a "gateway drug" any more then smoking is to pot.
The only reason it's illegal is it bypasses docs and drug companies. Two powerful entities that want to protect thier turf and retain a monopolistic grip/control on us.
After taking multiple drugs for migraines over the last six months it's very obvious that pot is not only safer but has fewer side effects and is much cheaper.