Topically it can be used as a pain reliever and orally, CBD works by reducing the perception of pain. CBD "quiets" the pain signal sent from the injured nerve to the brain.
According to CBD A Patients Guide to Medical Cannabis:
“At least ten randomized, controlled trials on over one thousand patients have demonstrated the efficacy of cannabinoids for neuropathic pain. Other studies have demonstrated that cannabinoids can reduce the amount of opioid medication needed, lessen the buildup of tolerance, and reduce the severity of withdrawals.”Read more