I have been using DMSO for about 3 mo now. I love it, I get it from Amazon 99% pure clear liquid, I pour it straight in a spray bottle then put a towel on the floor to catch the over spray because my neuropathy is in my toe area and it works great. I used to use cannabis CBD with an effect of 3 1/2hrs at best, now I sleep most of if not all night. It also works on uncle Arthur (arthritis) try it I have that also and it helps me with that.
If you don't know it was found back in 1910z when working with wood pulp, it's a by-product of it and the people working in it that had arthritis found that they were not having the pain associated with arthritis.