Yes, cannabis treats both inflammatory and neuropathic chronic pain.
Both CBD and THC are potent anti-inflammatories, muscle relaxants, and protect the nerves from further damage.
THC interrupts the pain signal and has a pain distracting benefit so that if the pain is not completely gone, the patient is not focused on it or bothered by it. With the uses of high doses of THC over a long period of time, tolerance can develop and is easily reversed, but addiction is not likely or lethal.
Pain Syndromes Commonly Relieved by Cannabis: