Hi all, just like to share that my husband had horrendous GPN. The neurologist had him on an infusion that required him being in ICU. That was to reduce the pain until the tegretol and gabapentin could kick in. Once they did, he still had zapping, but it was bearable for a while, then became so bad he was back to not eating and barely drinking. So the neurologist doubled the tegretol and the zapping stopped. Unfortunately the increased dose gave increased side effects.
I saw a study on acupuncture and TN. I asked around and found an acupuncturist who is also a doctor and has a PhD in neuroscience! So he started treatment with her.
In 4 weeks he had reduced the tegretol, and two weeks ago reduced the gabapentin. No zapping!!!
It may not work for everyone, but if you can find the right acupuncturist, you may be lucky like we have been. He will be stopping the morning meds soon, so fingers crossed!