I avoid it as best I can.
Once had a "friend" who, knowing that I suffered from motion sickness, deliberately drove us down a curving road repeatedly stopping short and starting up fast. We had been drinking that night too.
When the inevitable arrived I launched the vomit straight into the side of his head and the fool actually turned into it. It was perfect revenge but he almost drove off the road, and down a ravine which would almost surely have killed us both.
I may have died happy that night.