Yea, I had the same initial reaction about him selling it from the office.

Just been doing a bit more research and found a few more links, nothing very solid in terms of experimental research but some proposed explanations for the mechanism, namely calming the TRPV1 receptor.

http://www.painrelief.be/paincycle.html
http://prologel.com/research/
http://www.palmettospine.com/treatme...ions-spni.html