I came across this article about a non-medicinal anti-nausea device - I haven't tried it yet (mine is seasickness rather than air sickness) but it might be worth a shot?

http://www.aeromedix.com/aeromedix_articles/reliefband/

I have that, I used it when I started to learn to fly. It also helps when we spearfish and we get multi-axis roll in the boat sitting on the reef.

You still feel a little bad, but that band does seem to keep me from vomiting.

The biggest thing that helps me in the plane is keeping airflow from the vent on my face. On the boat I'm 100% fine if the boat is moving and we don't have a bad roll. When we stop and the boat starts moving multiple directions at once I am done.

I try to be the first in the water and the last out, just to avoid the roll. It's possible for me to get sick once I am in the water, but much tougher.

Try Bonine for motion sickness. Works on boats.

http://www.bonine.com/

Your body has to get used to it so the best thing is to just suck it up. A majority of astronauts get sick first time up even though many were former fighter pilots. Everyone gets over it within a few days.