wristbands for air sickness, do they work ?

Use your head rest. Minimize head movements, especially pitching your
head up and down. Use your eyeballs to look around. Yes you must
look around especially before turning, always clear your turns. But
if you minimize unnecessary head pitching you WILL reduce your motion
sickness. Also, you can condition yourself by stimulating your
equilibrium system by swinging on swings and twirling on playground
equipment. Don't make yourself sick, stop and sit still till the
feeling passes. The more you expose yourself to extreme equilibrial
stimulation the more you will be able to tolerate. Eventually it will
not be a problem or will only bother after a long lay off from
soaring. Then you just have to work up to it again. Don't let this
problem stop you.