After pregnancy has been vomiting can not eat is usually because of early pregnancy reaction, can be relieved through dietary adjustments, medication and exercise therapy. 1. Dietary adjustments: pregnancy, if you have been vomiting, can not eat, according to the situation of small meals, as much as possible, light diet, avoid greasy spicy stimulating food, etc. to ease, if the vomiting is too frequent, then no forced diet, you can pause to eat, to be relieved after the normal diet. 2. Take drugs: If the vomiting is severe and has been unable to eat, it may cause electrolyte disorders, you can take vitamin C, probiotics, sodium, potassium and other drugs to relieve symptoms, replenish electrolytes. Some pregnant women need to be treated by intravenous infusion. 3. Exercise therapy: once a pregnant woman has been vomiting can not eat the situation, you can through appropriate exercise, such as walking to promote normal peristalsis of the digestive tract, enhance physical fitness, alleviate pregnancy vomiting. Once a pregnant woman has been vomiting and can not eat and can not be relieved, it is recommended to consult a doctor. In addition, if you need to use medication should be used under the guidance of a doctor, to avoid blind use of drugs.