Naio, look at DMSO GEL on Ebay or Amazon
Use it as an ointment. This stuff is not some miracle sucker bait. Low priced and it actually works. Made from wood processing. I live with pain 24/7 not a little pain -- enough to awaken me at 0300 and only allow me to sleep in fits of a couple of hours. Bad enough that 10 milligrams of oxycodone plus 30 milligrams of oral morphine make me feel merely normal and greatly reduces my computation error when working with electronics. BUT the DEA today makes it almost impossible to get. Last dose for me was 2012. The reins have been turned over to pain doctors who milk the system like a state champion Jersey Cow.
