I know you asked Glenn, but wanted to pipe in with a reply.

The skin biopsy can document the PN for not only disability benefits, but more importantly, treatment options. Yours seems to be toxic in nature from the Levaquin, but many suffer this as a result of autoimmune disease (like Sjogren's) or other conditions where high dollar treatments are the only and/or best option...like IVIG. Insurance requires this type of documentation for approval of these treatments.

The test can also be used to gauge progression of the condition or improvement as the test can be repeated to see if density percentages have increased or condition of the fibers, itself, improved.

So, all in all, a very important test with both short term and long term qualities.