Excessive salivation during pregnancy may be a physiological phenomenon, or it may be a symptomatic manifestation of a disease, such as oral inflammation, reflux esophagitis, etc. Dietary changes can be made, or medication can be prescribed by the doctor. 1. Excessive salivation during pregnancy without other discomforts is usually a normal physiological change, mostly due to changes in hormone levels after pregnancy, resulting in exuberant salivary secretion. For this situation does not need special treatment, should eat less acidic food, etc., in addition to pay attention to oral hygiene, and develop a good habit of brushing teeth in the morning and evening, rinse mouth after meals. 2. Oral inflammation: If there is a lot of saliva during pregnancy, and the saliva has a rotten flavor, it may be due to oral inflammation. For this situation, pregnant women need to go to the dentist in time, under the guidance of the oral surgeon for appropriate treatment. 3. Reflux esophagitis: If there is a lot of salivation during pregnancy and accompanied by acid reflux, vomiting and other symptoms, it suggests the existence of reflux esophagitis, it is recommended that pregnant women need to go to the Gastroenterology Department in a timely manner, under the guidance of the doctor to improve the lifestyle, and medication, if necessary. Daily can eat soda crackers, whole wheat bread and other foods, pregnancy vomiting and saliva will have some improvement. Also pay attention to oral hygiene, develop a good habit of brushing your teeth in the morning and evening, rinse your mouth after meals, and seek medical attention as soon as possible if you feel unwell, do not blindly use medication on your own.