The Foundation for Peripheral Neuropathy has a pretty comprehensive list of treatments if you want to see if any might be worth a try.

-- Complementary Therapies: https://www.foundationforpn.org/living-well/complementary-therapies/
-- This one is included in a link in the above page but it's easy to miss since it's part of the text and doesn't stand out -- Complementary and Alternative Treatments: https://www.foundationforpn.org/wp-content/uploads/2020/08/Complementary-and-Alternative-Treatments-Revised-2020-final.-1.pdf