Sure.
oh, I forgot to add part of the name- mine is a far infrared heating pad.

Actually these links can explain it better than me typing it out..- it's where I got most of my info before purchasing.

I can say it did/does help with my muscular pain, I can't say if it will help for RSD or not..

http://www.thermotex.com/howworks.htm
http://www.therasage.com/therafusion...echnology.html

general results- far infrared therapy
https://duckduckgo.com/?q=far+infrared+therapy