Nausea and vomiting in early and late pregnancy are generally considered to be pregnancy reactions. After pregnancy, the HCG level in the body increases, and most women will have pregnancy reactions, such as nausea, vomiting, loss of appetite and aversion to oil. Pregnant women can eat less and more meals, eat light and easily digestible food to reduce the secretion of gastric acid, which can reduce the symptoms, if the pregnancy vomiting is more intense, you can take vitamin B6 orally to stop the vomiting, if the pregnancy vomiting causes water-electrolyte disorder, you need appropriate rehydration treatment to avoid affecting the development of the fetus and causing harm to the pregnant woman’s body.