I have 10 mg Zyrtecs, break them in 2 pieces and take one half in the morning and one piece in the evening every day - I am sure it makes no difference to take it in one piece but I started it that way and I dont want to experiment with it since it helps the way I do it so...
Directly after Oing I take 25mg Emesan (Diphenhydraminhydrochlorid). I take it only after O.
I forgot one thing. Maybe it isnt part of the conclusion - maybe it is. I have experimented with nutrition a lot the last two years. I noticed I have a sesitivity to nightshade plants. So I dont eat potatoes, tomatoes, chili and eggplants. Those gave me the same symptoms as POIS (brainfog, runny nose etc lasting 2-3 days).
I have Pois since roundanout 2012 and the only thing that helped was being abstinent for as long as possible. I tried alot of things. I made alot of food experiments, took vitamins, amino acids, sport, pre-packs -nothing really helped - most things made it worse rather than improve anything...
Right now I am on a totally normal diet. I can eat a lot of sugars, I can drink alcohol, I dont need to eat whole foods etc. - I just avoid nightshade and take those medications. I take those for two weeks now - so I cannot say if it helps over a longer period. But what I can say is that nothing else helped me to such a degree.
Day one after an O i have (if at all) like 10% of the symptoms of what I used to have. On day 2 I have no symptoms at all - and day two was always the worst...