DMSO stands for dimethyl sulfoxide. It has a long battle history, according to Nature's Healer by Dr. Morton Walker. The book points out flaws in the FDA procedure for approvals.
"Those of us who have been using the drug for many many years never dreamed that it would become a focal point in the continuing battle between individual freedom and the power of the government."
The substance has been employed safely and successfully by millions of people around the world to control swelling and reduce discomfort. It is safe and effective, and has the ability to penetrate cellular membranes and enhance the penetration of other molecules.
DMSO should be the initial treatment of choice for all acute destructive bodily processes. It could save many lives or reduce many injuries if it was in every ambulance and medical facility.
In the US, it has been approved by the FDA for use against interstitial cystitis. It is legal in 50 states for treatment of stroke, burns, arthritis and whatever other purpose the doctor deems appropriate.
There are many many uses of DMSO. Here are some links for more information:
That should get you started.