Here’s the list… it’s everything from IVIG to inuspheresis to wearing compression stockings.
https://www.longhaulwiki.com/index.php/List_of_doctors_and_approaches
A caveat…
This list is aging badly. Unfortunately it looks like a lot of the treatment claims aren’t panning out… a lot of people have made bold claims about treating Long COVID but very few of those claims are panning out. I’ve compiled some data on what’s working here:
I guess the moral of the story is that it’s really important to separate fact from fiction.