Have tried Penetrex for a week, but it didn't appear to work for her chronic, shifting neck pain. It shifts from the sides of the neck muscles to the base of the neck/skull. Sometimes, it feels like it's in the c-spine itself also. Was originally attracted to the MSM/DMSO2 in the penetrex for dermal penetration, but it didn't yield any results that affected pain levels.
Finally was able to convince her to visit an acupuncture place and I could attend the session as well. He, the acupuncturist, did some strange things, but did mention Rife, Gerson, and other things we discuss on CZ. I'm waiting to see if his therapies help before commenting further by giving it at least a week. He didn't do this, but mentioned Prolotherapy as a potential therapy.