Hi all,
Pumping the glans method from the Russian forum has seemed to work for me. It basically involved putting pressure on where your foreskin would roll up (or not if circumcized) after getting an erection. A decent amount of pressure for a while seemed to clear nearly all of my symptoms. Maybe I'd get a stomach ache or chest pains. But even pumping it with O, seemed to help clear up other previous pains if I didn't do it correctly (it happened a few times that I generally didn't apply the pressure) Niacin also worked for me but it involved a lot of timing.
I know I'm not cured, because if I don't do it, I'll experience POIS again, but it has consistently kept me not feeling completely miserable.
-DS