The following methods can be used to relieve the symptoms: 1. Patients should go to the hospital for rehydration treatment in time, because violent vomiting can lead to water-electrolyte disorders in pregnant women. 2. For patients with severe vomiting, antiemetic medication can be given. 3. For patients with vomiting accompanied by malnutrition, fatty milk and amino acids can be given intravenously. After 2-3 days of treatment, the condition will usually improve, and then a liquid and semi-liquid diet should be consumed, and small amounts of food should be eaten several times, avoiding too much food at one time to avoid aggravating the condition.