Motion sickness usually quiets down as soon as the motion stops. The more you travel, the more easily you'll adjust to being in motion.

Measures to take:

• Focus on the horizon or on a distant, stationary object. Don't read.
• Keep your head still, while resting against a seat back.
• Don't smoke or sit near smokers.
• Avoid spicy and greasy foods and alcohol. Don't overeat.

Drugs to use:

• Over the counter antihistaminics  like Meclizine , Dimenhydrinate   one  hour before journey .
• Scopolamine:  It is available as transdermal patch which can be applied behind the ear several hours before expected travel.  It should be avoided by person who have glaucoma ,urinary retention problems , asthma and heart disorders.