Just an addendum note:
The regular Vicks in a jar is not the item that
is used for foot burning- it is the creme in the tube
that was talked about in previous articles.
I read one, where someone claimed to be
'cured' of PN by using it.
This has been a topic for at least a year or two.
Some say it helps- also Biofreeze...and my personal fave-
'Icy Hot' (but the generic-'Cool Heat', from "Rite-Aid" drugstores.)