Nabilone (synthetic THC - formerly Cesemet, just went generic here) and the 'real stuff' on a vape - only substances that have been able to 'touch' the massive ball of pain that I get on the left side of my head and keep it under control enough so I can function. I tried many other commonly prescribed medications without success.

What works for one won't necessarily work for another.

(I'm legally allowed to have marijuana in my body/possession per my doctors/medical/prescriptions in Canada, and my prescription for Nabilone is actually a medication that's used to curb nausea in cancer treatment patients, or HIV positive individuals - as examples - completely legal in Canada and I believe it's legal across the board in the USA, the issue may be that of off label use - such as for pain in treatment of MS symptoms for example)