I take Tegretol for small fiber polyneuropathy. It diminishes the burning pain and has few side effects for me. I have intermittent burning mouth pain, with small blisters, as my neuropathy takes turn affecting different parts of my body! I took it for 20 years for seizures. When I resumed it 1.5 years ago, I had weight gain. That worried me at first, but honestly, as my neuropathy has progressed, looking fat has become one of the least of my problems.
I’ll try to find my initial post about my Tegretol experience.