Most of the nausea and vomiting during pregnancy is more likely to be caused by pregnancy reaction. At this time, you should eat less and more meals, mainly easy to digest, light diet, avoid taking greasy, spicy and stimulating food, rest more, relax, avoid emotional tension and anxiety. If nausea and vomiting are obvious and you can’t eat, it is recommended to consult a hospital, except for other diseases, and if necessary, give infusion to replenish energy and nutrition to avoid dehydration and malnutrition. It is also necessary to check electrolytes to prevent dehydration and electrolyte disorders. If necessary, potassium can be supplemented and other symptomatic treatments can be given, and you can drink more water appropriately.