In some states, you can buy CBD products, which have very low levels of THC, in stores or off the internet. In other states I think it is still illegal...

I can buy cannabis/pot from some Medical Marijuana Dispensaries in my state off the internet, and even have it delivered by one of them, ONLY because I have a medical marijuana card. Pot is legal for recreational use in my state, but not for online purchase. Maybe other states allow that. IDK.

But you are right, cannabis, or pot, does really help with pain.
CBD products also help a lot of people with pain, too.