Pregnant women during pregnancy teeth on fire, may cause swelling and pain of the gums, you can drink more water, eat light food, you can drink chrysanthemum tea or honeysuckle water, are able to play a role in clearing heat and detoxification, you can eat appropriate cool fruits and vegetables, such as cucumber, dragon fruit, etc., need to pay attention to maintain oral hygiene, brush and rinse after eating, you can choose to use heat removing fire toothpaste. If the situation does not improve or there is fever, you need to go further to the dental clinic for examination, you need to give medication under the guidance of the doctor, generally does not affect the development of the fetus.