I hope the title gets most readers’ attention. Marijuana works best for migraines, glaucoma, obstetrics and reasonably well for trigemprogeminal neuralgia. If it works well for those, it probably is the best. It is certainly the safest, as it has never caused deaths in about 5000 years of medical use, and unlike the opiates and opioids, which have killed many thousands.
It is also minimally addicting with minimal withdrawal symptoms when a patient runs out.