Most of the symptoms of constant spitting during pregnancy are caused by changes in endocrine function during pregnancy, which affects the secretion of oral salivary glands. Poor diet structure or eating habits may aggravate this symptom, and mental factors and emotional reactions may also affect the secretion of oral salivary glands. Pregnant women can eat more light food, try to avoid eating chili peppers, and try to avoid eating foods with too much acidity, such as hawthorn, strawberries, apricots, green apples, etc.. You can eat nutty foods, such as walnuts, peanuts or soybeans, black beans and other legumes, which can effectively relieve this symptom. Try to go outdoors as much as possible to divert attention and participate in more group activities, such as painting, listening to music or taking a walk. It is best to carry tissues with you at all times when you go out, so that you can use them when you have too much saliva.