Motion sickness happens when the movement you see is different from what your inner ear senses. This can cause dizziness, nausea, and vomiting. You can get motion sick in a car, or on a train, airplane, boat, or amusement park ride. Motion sickness can make traveling unpleasant, but there are strategies to prevent and treat it. Preventing motion sickness without medicineAvoiding situations that cause motion sickness is the best way to prevent it, but that is not always possible when you are traveling. The following strategies can help you avoid or lessen motion sickness. Sit in the front of a …