Basically, with a condition like that you are dealing with neuropathic pain rather than nociceptive pain or inflammation (When the pain has a localized cause). Unfortunately, traditional analgesics won't help. CBD can, according to the latest theories, make you care less about the pain rather than lessen it but I'm not sure how effective it will be on this no d of pain. Worth a try though. The best bet for this kind of pain is usually and antoconvulsant such as gabapentin or pregabalin. I'm assuming you've already gone down this route?