I even get carsick when I am driving myself. This especially happens when I am driving De Luz Road. I don't necessarily think that the gracious residents of that lovely segment of our community would appreciate me closing my eyes while driving that road. Contrary to what some of my friends may say, I do drive somewhat better with my eyes open. Well, that involves side effects and so on.
Most cases are mild and self treatable disorders.
But severe cases, and those that become progressively worse, deserve the attention and care of a physician. Sit by the window of the airplane and look outside. Choose a seat over the wings where motion is the least. Do not read while traveling if you are subject to motion sickness. Do not watch or talk to another traveler who is having motion sickness.