The Citroen car company, of all people, has developed a pair of glasses that cure motion sickness.

https://gizmodo.com/these-bizarre-gl...ckn-1827479936

They work by providing an artificial horizon that matches up with what ones inner ear and eyes are perceiving and that makes the discomfort go away. Supposedly if they are worn for 10 or 15 minutes when nausea first appears they can stop the attack.