Clinically there is no most effective way for pregnant women to suffer from motion sickness, which can be relieved by opening windows and ventilation, eating acidic food and other methods. Pregnant women in carsickness in the car as far as possible to choose the back row of the stable position or choose to lean against the window position, the window position is conducive to ventilation, which can alleviate motion sickness. You can also eat some acidic food for relief, such as hawthorn, lemon, etc., which can reduce the symptoms of vomiting and nausea caused by motion sickness. Pregnant women in the car before the best not to eat, or can eat a small amount of light diet, in the process of the car due to vehicle shaking will lead to human intestines and stomach shaking, which will produce nausea, and even vomiting. You can consider switching to other means of transportation, such as high-speed rail, etc., relatively bumpy feeling will be weaker. Clinical symptoms of motion sickness in pregnant women are not recommended to use drugs without authorization, so as not to affect the development of the fetus.