I've been drinking ginger tea for the past couple months or so and the effect has been surprisingly good. In fact it seems to help me nearly as much as cutting wheat from my diet. I usually drink it after a large meal consisting of a lot of meat because it speeds my digestion a lot. It gives me a large amount of energy and decreases my cognitive, emotional, and physical POIS symptoms considerably.
I make it by grating raw ginger root into a teapot, bring it to boiling, then heat it while boiling for 10 minutes.
I've tried dried ginger powder on meals before, but it didn't seem to have as strong of an effect. I'll have to try it again to make sure though.
My hypothesis is that over the years the inflammation I get from POIS has damaged my digestive tract and that ginger tea is able to remedy that damage in several ways. I think ginger has general anesthetic properties and in addition probably acts as an anti-inflammatory for me. I suspect that other POISers are likely to have some digestion problems and it would make sense that ginger would benefit more of us.
I'd like to know about all of your experiences with ginger tea. Responses about other forms of ginger such as dried ginger powder are also welcome.