I have post herpatic neuropathy since having a moderate episolde of shingles in March. The virus seems to have gone into my sciatic nerve and i have constant numbness, tingling and pain all down my leg and into my foot. It isvery painful and prevents me from exercising or walking or standing without a great deal of pain. Iwas tried on gabapentin but that did not help at all. Now I have a script for Tegratol. I am really tired of just trying one unseccessful treatent after another with no relief. I go to a job every day and the neurologist told lme this morning that she doesnt' know how I can even stand on it let alone walk. Already I don't have much hope for this new drug.