You can drink soda water or eat soda crackers in moderation to neutralize stomach acid during late pregnancy. It can relieve the bitterness of the mouth or the burning and stinging pain in the stomach caused by excessive secretion of stomach acid. If you feel the excessive secretion of stomach acid and stinging sensation, you can also take some sodium bicarbonate tablets in moderation. This drug can inhibit the secretion of stomach acid, protect the gastric mucosa, and can also relieve the symptoms of bitterness in the mouth. The side effects of this drug are not significant and will not affect the growth and healthy development of the fetus. Try to eat a light diet, do not eat too greasy, poorly digested food and spicy stimulating food. Avoid increasing the burden on the stomach, leading to indigestion, stomach pain or bloating. You should be careful not to eat chili, onion, ginger, garlic.