Dmso is a solvent- and messing with it without knowing correct dosages can have negative effects and can cause cell death. Also there is the danger of other chemicals being transported through the skin with dmso that isn’t pure. You can get pure from prescription, and some otc sellers claim their product is pure, but are no Independently tested.
Here is a writeup on it for those that might be thinking about trying it
https://biologyinsights.com/dmso-toxicity-how-concentrations-affect-human-cells/
There may be a bit of truth here. There are dozens of doctors and pet doctors on youtube telling about the dangers of Sulfa based drugs. I should have listened.
Of course, the advanced “stick in the nose” test with nanoparticles and cleaned with Ethylene Oxide (a known carcinogen) is a no-brainer. Do no harm...
https://www.consumernotice.org/environmental/ethylene-oxide/
according to the link the mix for dmso should be between 5 and 10%,as I recall I used a much more potent mix than that. I guess it’s hard to say how each individual will react to using
DMSO at various levels.