Keep your mind occupied. Focusing on the moving ship will induce seasickness, so find something else to focus on. Allow your mind to wander toward anything except the movement of the boat.
Food and water. Drink plenty of water and eat something nutritious. Avoid greasy and acidic foods. Apples, bananas, grapes, muffins, cereal, and grains are all good choices. Avoid coffee and alcohol. These both dehydrate your body faster when you need to be hydrated.
Fresh air. Avoid the cabin and try to get some fresh air, preferably in a sunny spot.
Ginger. Ginger is the most common natural cure for seasickness. Prior to going out on the water, purchase ginger capsules from the local health food store and consume within an hour of boarding.
Dramamine. Dramamine and Bonine are over-the-counter cures for seasickness that can be used if natural remedies fail. Be aware that these medications tend to cause drowsiness.
Wrist bands. In 1981 <i>The New York Times</i> ran a report about Dr. Daniel Choy, an acupuncturist and avid sailor who had devised a method to cure seasickness through pressure points in the wrist. The elastic bands are strapped around each wrist and held tight with Velcro, with a piece of plastic held in place over the pressure point on the forearms. This applied pressure has been proven 70% effective in curing seasickness and has no side effects, according to Dr. Choy's studies.