I have bad facial nerve damage/pain that happened after some odd dental work.
At first it was outrageous. I mean like screaming pain for days at a time for a year or more. After a lot of trial and error with meds, I was given a special compounded cream with gabapentin, lidocaine and capsaicin to rub into the affected area. It took awhile, but it helped/helps!!!!

I also have some neuropathy in my feet. Especially the toe next to my pinky toe. I guess that is my fourth toe. In both feet. I don't know what in the world this is. And some weird numbness in the pad of one foot.

A podiatrist gave me a compounded cream that helped with like seven in ingredients in it.

My insurance no longer covers these creams. I absolutely have to get the one for my face.

Anyway, bottom line is I started putting the one for my face on my feet in the bad areas. Just a tiny bit twice a day and it is helping about 75% and no side effects.

Just thought I'd mention it for those folks who have tried everything....etc.
Just three ingredients (see above), it requires a doctors prescription and needs to be filled at a compounding pharmacy. And it's helping!!!!