That itching will drive you crazy I know. What I do is this. Determine if your feet is hot or cold and put the opposite temp on them. I know I'm crazy.
Gabapentin did help though, especially with the burning. Itching is just sporadic and I think it's because my nerves are healing. To bring healing to damage nerves you should keep your BG as close to normal as possible. It's taken 2 years for my feet/legs to start healing and they hurt more when they start to heal.