@rvan8890 I haven't experienced the itching on the back of my heels but have had some in other locations. You might check out this discussion started by Chris @artscaping to learn what others have shared.
--- What do you do for Neuropathy itch?: https://connect.mayoclinic.org/discussion/what-do-you-do-for-neuropathy-itch/

Good evening @rvan8890 and thank you @johnbishop for the introduction. Yes, I am the one who has SFN and developed the neuropathic itch. If my memory is correct the itch began about 8 years after my diagnosis. My dermatologist and I spent a couple of years trying more than 3 different products hoping to be able to stop the itch. The difference is that the neuropathic itch originates inside the body......not on the exterior skin. What happens is that by scratching the itch......the skin becomes inflamed and pretty darn messy.

Finally, we found what I can call a total solution and that is Dupixent. On August 13, 2022, I gave myself the first injection. I have never had even a hint of itching since that injection, My dosage right now is 2 pens a month on alternating Sundays. If you would like to learn more about Dupixent, you can find it at http://www.dupixent.com. They also have an annual Co-Pay program up to a maximum of $13,000 per year that is called "Dupixent my way".

You mentioned your heels and I assume that both heels are involved.

If you would prefer to try getting some help from a topical, there is a rather new OTC option available online and it is called Dermeleve at http://www.dermeleve .com. It is a balm that works within 15 minutes and lasts for 6-8 hours. I keep one tube of Dermeleve with me wherever I go......just in case.

Please let me know if you are beginning to have neuropathic itch in other areas. I am here to help you as much as I can.

May you be safe, protected, and free of inner and outer harm.
Chris