I agree with you, Hopeless. Get a handle on what is aggravating the nerves, the standing. I would go so far as to find another job. The long term cure if that is possible is to avoid aggravating it and hopefully it heals on its own.

In the meantime I would take lots of high quality vitamins, especially B vitamins and B12 (methylcobalamin) which are good for nerves and use horse liniment which is cheaper than the human stuff but still the same thing (capsaicin). Capsaicin temporarily wears out pain receptors. And exercise to get the blood flowing and taking nutrients to the site to heal and taking waste away.

I have been struggling with mine for a year from sitting and now I am determined to work harder on healing. I stand up multiple times a day now and that could help you--sitting multiple times a day. Good luck.