Hi nut.........thanks for the info. I did some digging and made a few calls........and came up pretty empty. I remember doing this once before when my Mom had permanent nerve damage to her face from Shingles. Seems nothing much has changed since then........except for one possible solution that made me raise an eyebrow. Years ago I would have laughed and forgot about it........but I'm going to throw it at you and you can do with it what you want.
Yeah, I know.....seems like a bad joke. But I've come to respect such things rather than dismiss without actually trying them first. I'm reading that acupuncture is a very valid way to reduce skin nerve damage and pain. Obviously never tried it myself......but I have seen them do some pretty amazing things with acupuncture. Might be worth a discussion with some acupuncturist that knows their stuff, and there should be a lot of them out your way. I mean what have you got to lose?
Sorry I don't have more answers for you.