Particularly severe pregnancy vomiting may be caused by changes in hormone levels, mental stress, improper diet, etc. It can be relieved by adjusting the diet, adjusting the mindset, and using medication. 1. Hormone level change: pregnancy will make the female body hormone level change, stimulate the gastric mucosa, affect the gastrointestinal tract peristalsis and emptying function, thus leading to pregnancy vomiting. Pregnant women can adjust their diet, try to eat light and easy to digest food; if the symptoms are more serious, pregnant women can use drugs such as vitamin B6 to relieve the symptoms, if it causes electrolyte disorders, need to go to the hospital for fluids. 2. Mental tension: If the pregnant woman is overly worried about the development of the fetus after pregnancy, a long time in a state of mental tension, may lead to pregnant women with severe vomiting. At this time, pregnant women should pay attention to adjust the mind, maintain a happy mood, can to a certain extent reduce the symptoms. 3. Improper diet: If the pregnant woman always eat too greasy food, it will also aggravate the vomiting. At this time, pregnant women should pay attention to maintain a light diet, eat more fresh fruits and vegetables, can promote appetite, reduce the symptoms of pregnancy vomiting. Note that the above drugs should be used under the guidance of a doctor, avoid unauthorized use of medication to avoid adverse effects. If the pregnant woman’s symptoms are not improved by the above methods, it is recommended to consult a doctor in a timely manner, complete the relevant examinations and take targeted treatment measures.