Dear Eva,
This is promising news. I take an anti-convulsant (Topiramate) for Cluster Headaches which definitely helps my Neuropathy, especially my face.
I found a few articles regarding your new med and nerve pain, here is an example of one very positive one:
http://www.medscape.com/viewarticle/477664
Just make sure you drink plenty of fluids while you are taking it due to risk of kidney stone formation.
Wishing you lots of luck.
Dave.