Based on a recent post by boytos, I looked up DMSO products on Amazon and found one that was 70% DMSO and 30% Aloe. Reviews were very mixed with some people getting immense help and others having problem with severe skin irritation and/or no results. Since I have sensitive skin, I have to pass.

Here it is btw: http://www.amazon.com/DMSO-70%25-Alo...dp/B00016QZ0C/

But then I also ran across Penetrex, which has some DMSO in it, and strong reviews:

http://www.amazon.com/Penetrex%C2%AE...dp/B0026HDURA/

I searched the reviews for "neck" and the ratings got even better.

The makers describe it as a "transdermal anti-inflammatory": http://www.penetrex.com/

Has anyone here used it?

How about "Sombra"? http://www.amazon.com/Sombra-Therapy...dp/B000WZOJCI/