What Kind Of Treatment For Peripheral Neuropathy. I Had Good

what kind of treatment for peripheral neuropathy. I had good health til Oct 2015. then started with foot pain & burning. I have had several nerve tests and blood chemistry tests. I am currently using gabapentin 200 mg 3X daily to get any relief along with hourly icing my feet. I am not able to walk any distance. what tests or treatment of the cause would you suggest? I had a flu shot about 3 weeks before systems started.