Due to individual differences, some women are still suffering from severe vomiting after 13 weeks of pregnancy, which can be alleviated through dietary adjustments and medication (e.g. vitamin B6, vitamin C, etc.). 1. Dietary adjustments: Pregnant women with severe vomiting should avoid contact with irritating odors and greasy foods, such as onions and fatty meats, and maintain good eating habits, try to eat small meals and avoid overeating, in addition, pregnant women can also eat fewer oranges, lemons and other foods with a sour taste, to assist in relieving symptoms. 2. Medication: On the basis of dietary adjustments, pregnant women can also take vitamin B6 orally as prescribed by the doctor to alleviate the symptoms. Those with severe vomiting can go to the hospital, and after the doctor’s assessment, supplement water and electrolytes as appropriate. Vitamin C, vitamin B6, potassium chloride, etc. should be added into the compound sodium chloride injection and dextrose injection to maintain the water-electrolyte balance. If the patient is unable to eat due to vomiting, extra-gastrointestinal nutrition can be used to provide nutrients to the body by using fat milk and amino acids. Most pregnant women will improve after treatment, but if symptoms such as persistent jaundice or urinary protein, or a temperature persistently higher than 38°C occur, termination of pregnancy should be considered.