Literally no one can answer your questions. Sorry about that.
All you can do is move forward as best as you can and see what happens.
I don't know much about the Monoclonal Antibodies and treatment.
His problems could be COVID-19 based, or "vaccine" based if he took those.
I wouldn't think DMSO would affect someone's brain, except in good ways.
As long as you are taking it "correctly", which I think is suggested in
Jim Humble's "MMS Health Recovery Guidebook".
You might want to "reset" and start over from the beginning with the Protocol 1000.
Maybe he's very toxic now, and you are seeing some kind(s) of Herxheimer Reactions.
I've worried that COVID-19 and the "vaccines" might be so bad that even MMS is
having problems dealing with them.
If those IDIOTS would actually do some decent research and tell us what to do
more than Jim and the others have with their mostly anecdotal research,
SO MANY people would probably be helped in so many ways.
But there's no money in it, so they won't.
So we only have what we have and can only use it as best as we can.
I hope you figure it out and get him back to restored health.
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You will find info there regarding Jim Humble's "MMS Health Recovery Guidebook".