I have Rheumatoid Arthritis and Fibromyalgia. Cetyl M helps the muscle pain after a day in my garden. I also apply DMSO gel on top of the Cetyl M. I use on my lower back and between my shoulders. The muscles across my back and ribs are sore and hurt. The Cetyl M will remove the soreness and the DMSO helps the swelling. I use it every nite on by bad knee.Pain med doesn always help. At 73 horse medacine keeps me going. My Doctor laughs at me and he always tells the young interns to ask me about DMSO.