Symptoms from chemotherapy-induced peripheral neuropathy can go away, or it can be permanent. With my dad's chemo for his first cancer, it did eventually get better. Although I didn't really pay attention to the length of time it took to improve.
Some people on here have taken neurontin (gabapentin) like you, and it has helped them. You might want to ask your doctor about the possibility of using the antidepressant drug Cymbalta. http://www.cancer.gov/clinicaltrials/results/summary/2012/neuropathy0612 to see if it might be helpful.