I've suffered motion sickness all my life and had similar issues with my first few lessons especially once the flaps were down. If it was nerves it was more about being nervous about being sick rather than about flying.
I'm at around the same stage as your student, but last lesson I had control all the way into landing and felt fine. I figured it would be like how I never get car sick while driving. So it's a worry that he feels crook while at the controls.
There are always things like ginger tablets, herbal motion sickness pills or wrist bands he can try (medical motion sickness pills can cause drowsiness). Not sure how effective they are but they might have an effect even if it's placebo.
Interestingly, I put a photo of me in a turn, which my instructor took, on Facebook and my pilot cousin commented that I was leaning away from the turn, which he reckons causes vertigo. Might be worth checking that.
David
Last edited by Bonniciwah; 16th Aug 2012 at 03:42.