If you have a big pregnancy reaction, you can have a dietary regimen or take some medication to treat it. 1. Dietary regulation, pregnancy reaction is particularly large, is the hormone in the body after pregnancy to affect gastrointestinal peristalsis, food stays in the stomach caused by, this time you can eat less and more meals, the diet should pay attention to light, easy to digest, do not eat too greasy food. At the same time try to avoid contact with odors and foods that can easily induce vomiting. 2. Medication, if the effect of diet is not good, you can go to the hospital, follow the doctor’s instructions oral vitamin B6 and metoclopramide and other medications; if the pregnancy vomiting is more serious, can not eat, it is necessary to give the correction of dehydration and electrolyte disorders treatment. Most of the patients with vomiting, after active and standardized treatment, the condition will soon be improved, and with the progress of pregnancy and natural subside, mother and child prognosis is generally good.