I'm not totally sure about this, but hydrogen peroxide is ozone's weaker cousin and it has two molecules of oxygen. I always recommend not using DMSO and oxygen products together because of this strange story about a lady who came to a hospital and died. In the process made most of the people in the emergency room really sick from smelling the fumes coming off her body. The story was headline news all over the country for a few days back in 1995.

This is a long article on the story. It's from Discovery Magazine. Here is the essence of what they found.

"Since DMSO can react with oxygen and form dimethyl sulfone, Grant began to wonder what other compounds might be formed when oxygen is added to the chemical. On the same page of the index he had been reading, he found the answer: dimethyl sulfate. It was one of those deals that was pretty fortuitous, Grant says.

In chemistry little changes can sometimes lead to big results. Add one oxygen atom to DMSO and you get dimethyl sulfone--you change one solvent to another. But now add two oxygen atoms to dimethyl sulfone--which in chemical notation is written (CH3)2SO2--and you get dimethyl sulfate, (CH3)2SO4, a truly nasty chemical. Vapors of dimethyl sulfate, the index explained, kill cells in exposed tissues, such as the eyes, mouth, and lungs. When absorbed into the body, dimethyl sulfate causes convulsions, delirium, paralysis, coma, and delayed damage to the kidneys, liver, and heart. In severe cases, the vapors kill. Like many other chemicals, dimethyl sulfate has a good side and a bad side. Industries use dimethyl sulfate to tack methyl groups onto organic chemicals. But the index also said dimethyl sulfate is a war gas."

If you want to read the whole story, which is like a good detective story, go here:
http://discovermagazine.com/1995/apr/analysisofatoxic493

But as for me, I don't mix oxygen products with DMSO because of what happened to this lady and the emergency techs.

I used hydrogen peroxide 32% VERY CAREFULLY on my moles and tags, with q-tips soaked with peroxide and rubbed it on the area for a minute a few times a day, for about 2-3 days, when it got tender and red I left it to dry out into a crust which peeled away together with the mole or tag.

Ancient thread but doesn't oxidized DMSO become MSM? If DMSO could carry ozone or peroxide it would almost be a holy grail as a transdermal oxidative therapy, since DMSO easily gets into the blood.