Keith, ask your doctor to consider prescribing you this salve:
plo-gaba-diclofenac-lido 5-3-5% It has to be made up by a mixing Pharmacologist. It is basically a local Gabapentin dose, Gaba is one of the most effective drugs known to stifle nerve pain. I had a prescription for the pills, and they worked great, also turned me into a drooling zombie, with the salve I found the same pain relieving effectiveness, without the unwanted side effects. Good luck.