@soby, I have idiopathic small fiber neuropathy but only have the numbness and some tingling in my legs and feet. I also have degenerative disc disease and have thought that my spine may play a part in my neuropathy symptoms. I haven't found much that helps with the numbness in my feet but always looking for what may help. For now I just make sure that I keep the skin on my feet and legs moisturized daily since the nerves are near the skin and it seems to calm my feet some at night when I put lotion on my feet and also put some loose stretchy socks over the feet after applying the lotion. I mostly use a magnesium lotion but think any moisturizer is better than nothing.

I did find a research paper that I think may describe what may be happening but it doesn't seem like there has been much study on the question.
-- Chemical radiculitis: https://www.sciencedirect.com/science/article/abs/pii/S0304395906003927

I did a search of Connect using - radiculopathy +"no compressed nerves" that found quite a few comments from members if you want to scan through them while you wait for other members to respond - https://connect.mayoclinic.org/search/.