I know that this is happening in the vax injured community (and the medical freedom movement) but unfortunately I can’t expose all of the bad actors. The Prife iTeraCare wand was an egregious example though, you can see some of its history on the LongHaulWiki page for it.
The reddit post below is for PSSD but applies to long haul too.
https://www.reddit.com/r/PSSD/comments/18eltfd/dark_side_of_trying_to_find_advice_or_a_cure_on/