It is best to go to the hospital for a checkup in early pregnancy and choose the appropriate treatment according to the specific situation. Early pregnancy due to hormonal changes in the body, easy to cause bitter mouth, nausea and other reactions, is a normal physiological phenomenon, generally do not need to be treated, pay attention to drink more water, eat more vegetables, fruits can ease the discomfort. If the body’s resistance is low during pregnancy, it is easy to be infected by bacteria, resulting in inflammation in the mouth, which can cause bitterness, you need to take anti-inflammatory drugs under the guidance of a doctor to promote the recovery of inflammation, such as penicillin and other anti-inflammatory drugs, which do not affect the fetus, so do not worry too much. It is also recommended to brush your teeth with herbal toothpaste and rinse your mouth with light salt water after each meal, which can promote recovery. If the bitterness of the mouth is caused by indigestion, it is necessary to take stomach-healthy tablets under the guidance of a doctor, and it is also recommended to eat more easily digestible food, such as millet porridge.