Those numbers clearly show that they are improving.I'm assuming these are your large fibre numbers ,but your symptoms for burning and pain involving the small fibre seem to be improving aswell.
I have done laser before for a few weeks but didn't continue due to cost and wasn't seeing much results from it.But in saying that i have ready ALOT of information and studies in regards to laser treatments for neuropathy/nerve damage.So I will give it a try again .
As they say,good things take time.