postherpetic neuralgia
"A month and 53 days ago I had a case of the Shingles.  Two weeks after the Shingle rash started to go away I experienced sharp stabbing nerve pains at the main Shingle sight.  I was put on Gralise (gabapentin) by my Neurologist moving from 600 to now 2400 mg at night.  I have found very little relief so far other than the stabbing pains are not so severe.  I was told it could take 60 days or more to work.  I have had no side affects from using this drug at this level."