If you are feeling car sick, tilt your head from side to side - it should go away.The reason you get car sick is because, outside of the window, you are moving, and you can see you are moving. However, the car looks still. Your brain struggles to cope with this and so the balance receptors in your brain and your balance things in your ears are going a bit bonkers, so you feel sick. By moving your head you are moving, and your balance receptors are focusing on the fact that your head is being tilted to worry about feeling sick.