If you are prone to becoming seasick and know you will be flying in an airplane or taking a three-hour boat ride, try to plan ahead to lessen your chances or avoid becoming seasick altogether. Be sure to get a good night's rest and drink plenty of water. If you are flying, take an over-the-counter medication to aid in motion sickness relief. Most of these will make you sleepy so taking these for a boat tour or fishing trip may not be a good idea. If on a boat, make sure to keep your eyes on the horizon and do not partake in activities that conflict your visual and body perception. One great example is reading a book. This activity tells your brain you are stationary while your body is saying, "Wait, no, we're moving."
One seasickness relief method that tends to work for many people is to keep their mind occupied. If flying, try to watch an on-board movie. If on a boat, see if you are able to drive the boat. Steering the boat tends to allow the seasick person to gain a sense of control over the movement of the boat on water and keep their brain busy. If driving the boat is not an option, try to situate yourself as close to the middle of the boat as possible, as this location tends have the least amount of movement. Lastly, stay outside in the fresh air. Breathing in stagnant air tends to make your seasickness feel worse, not better. Since this option is not possible on an airplane, instead try to turn on the air vent above you so the cool air blows on your head and face.
If you become seasick and are able to stomach any type of food or drink, have something with ginger. This could be ginger ale, ginger cookies or just plain ginger root. Ginger is known for helping settle a queasy stomach. However, if your seasickness has you hanging over the side of the boat, remember to keep drinking as much water as possible, as dehydration tends to lengthen the recovery process.