You should ask for it, it will legitimately help. I have 3 slipped discs pressing on my spinal cord, had a fractured C6 (neck) and a crushed tailus (ankle) obviously I can get whatever I want and was on the strongest opioids available. It gets to where you need more and more to work and eventually you have to have them just to feel normal. They are the devil's poison!
Marijuana will work every time you use it, won't give you any of the negative side effects or addiction. It's a completely natural plant made by God and unaltered by man, unlike so many extremely dangerous drugs in a lab.