http://www.livestrong.com/article/94...ts-vancomycin/

That link I gave you specified vestibular damage too.

https://docs.google.com/viewer?a=v&q...XD06uCePIiF6-g

If you were given Levaquin or Cipro (in addition to the amoxicillin) that started this whole thing, those are more implicated in PN. Also Flagyl (metronidazole) is tried in C.difficle infections, so you may have had it too, but didn't notice or forgot?

In any case the supplements you need are those that help mitochondria. The antibiotics typically damage the mitochondria and that may be how the nerves become damaged.

Acetyl carnitine
Lipoic acid
CoQ-10

These are the major mito interventions.

I hope you find this as the thread hasn't been active for a few days. I just read kefir actually has been shown to reduce the number of clostridium bacteria in the gut so it may be very worthwhile to try it. I had C. Diff once too, you have all my sympathy having had it repeatedly.
Good luck,
Zygo