Stacy,

After reading the link MrsD posted and looking into EM a little more (I know very little about it), I think you should ask about some routine blood work (CBC, CMP) as well.

EM can be caused by SFN as well as several hematological disorders, so it would be helpful (and faster) if she ran some simple blood tests WHILE she continued the diagnostic process.

http://en.wikipedia.org/wiki/Erythromelalgia

This way she can rule out gout, and other blood disorders (even ones associated with EM) at the same time as she proceeds with neuro testing and hopefully EM evaluation.

I'm not sure I saw or remember your original postings, but did your symptoms start with PN type burning BEFORE your got any swelling/redness or did it all start together? How long has this been going on? Was it sudden or slowly increasing over time? Sorry to have you repeat what you've likely stated long ago.