And I assume you've tried massive doses of Neurontin and/or Lyrica for the PN. Correct?

p.s. Just saw your other thread at the bottom of this page, which sugests that you may not be as familiar with these drugs as I had thought. If that's the case, I would urge you to get acquainted with them in some detail, before you assume that there's no effective treatment for the PN that will work. Ditto re consideration of Marinol [synthetic THC] at a "suitably therapeutic dose" for both nausea and spasm control.