I was asked to make something for neuropathy.  I knew little about it, so researched. Capsacin was the magic word that kept coming up.

I made the bare-bones recipe and that's what we're still using.  My asker was happy that it worked so I stopped.

I got to thinking that nerve endings are what the issue with shingles is, so I found a person that had some and tested on them.  I got "it's gonna need to be a hell of a lot stronger!"  Sooo, back to the drawing board and found a stronger pepper.

My original "neuropathy cream" has cayenne pepper infused in olive oil

My "neuropathy cream plus" has habanero pepper infused in the olive oil with the same base recipe. 

Made with pepper infulsed olive oil, emu oil, evening primrose and borage oil with beeswax and Vitamin E