The following brief video discusses the use of magnetic insoles to relieve diabetic neuropathy symptoms in the feet. At the end of the video there is a website listed as a source for magnetic insoles. The insoles on that website probably work quite well. Personally, I recommend the “Neo-Flex” insoles that are available through:
Therion professional magnetic therapy product solutions
FOOT PAIN: Ch7 ABC News Reports: Diabetic Peripheral Neuropathy