As a pharmacist, I recommend DMSO to my customers. I tell them to get it from a tack shop, which is a horse shop. I have used DMSO off and on for 40 yrs. and am 62. My mother used it at my recommendation for her bad back and told me it was the only thing that relieved her pain. She lived to be 84. Now for you doubters their is a medical product Rimso-50 that is 50% DMSO. It is used for interstitial cystitis In other words you can put it in your bladder as a rinse, but the FDA will not ok it for topical use. Is that stupid or what. Just get some and use it. Burns, sprains, and many other injuries respond greatly to it and heal a lot sooner. Of course most MD’s hate it because they do not understand what the hell it is and how it works. Sometimes they are educated idiots.