Motion sickness occurs when the brain receives conflicting signals from the motion-sensing parts of the body: the inner ears, the eyes, and nerves in the extremities. Under usual circumstances, all three areas respond to any motion.
If your child starts to develop the symptoms of motion sickness, the best approach is to stop the activity that is causing the problem.
To prevent car sickness in children, you might:
Reduce sensory input. Encourage your child to look at things outside the car — rather than focusing on books, games or movies. If your child naps, traveling during nap time also might help.
Carefully plan pre-trip meals. Don't give your child spicy or greasy foods or a large meal immediately before or during car travel. If your travel time will be short, skip food entirely. If the trip will be long or your child needs to eat, give him or her a small, bland snack — such as dry crackers and a small drink — before it's time to go.
Provide air ventilation. Adequate air ventilation might help prevent car sickness. Try to keep the air clear of any strong odors, too.
Offer distractions. If your child is prone to car sickness, try distracting him or her during car trips by talking, listening to music or singing songs.
Use medication. If your child is older than 2 and you're planning a long car trip, ask your child's doctor about an over-the-counter medication to prevent car sickness. Dimenhydrinate (Dramamine) is approved for kids 2 and older, and diphenhydramine (Benadryl) can be used for kids 6 and older. Read the product label carefully to determine the correct dose and be prepared for possible side effects, such as drowsiness. Nondrowsy antihistamines don't appear to be effective at treating motion sickness.
Read more at Mayo Clinic
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