Although it may seem like a long time, four months is not that long when it comes to treating neuropathic pain. Have you tried anything other than the Elavil? This is usually one of the first drugs to try for such pain, but it's very often not the best. Neuropathic pain is very often treated with a combination of antidepressants, antispasmodics, and muscle relaxants, with narcotics frequently prescribed for breakthrough pain. If the Elavil is not giving enough relief, I'd suggest asking your doctor about switching to Effexor or Cymbalta, and perhaps adding an anticonvulsant like Tegretol, Lamictal, Neurontin, or Lyrica.

I believe you will find good relief from your neuropathic pain. Just be patient, as finding the right medication(s) can take a while (I am speaking from experience, as an occipital neuralgia sufferer for many years). So if my experience is any guide, don't give up on sex. It's much too early to sentence yourself to a life without a satisfying sex life.