When traveling by boat, due to the bumps, swinging or rotating will easily cause seasickness. Seasickness must lie on your back, and eyes should be closed, if there is no place to lie to take a sitting position, the head must be close to the object, this is effective to avoid a large swing caused by the more serious state. And seasickness people must choose to sit in a well-ventilated position, one hour to two hours before the boat can take seasickness medication, which can reduce or avoid seasickness.