Motion sickness can cause vomiting, paleness, cold sweats, hyperventilation and headaches. Over-the-counter antihistamines can help reduce the discomfort of motion sickness if taken 2 hours before the traveling. Medicated patches containing scopolumine can prevent motion sickness if applied behind the ear 8 hours before travel. The patches are available by prescription only.
If you are susceptible to motion sickness, avoid eating heavy meals for atleast 2 hours before traveling and then eat light, easily digestible foods such as crackers, bread and canned fruit.
Also, don't read in the car or on a plane, train or boat when it's in motion.
When traveling long distances by car, sit in the front seat and focus your eyes on the horizon. This stable reference can help minimize the effect of changes in the inner ear, which controls the sense of balance and play a role in motion sickness.