Internal heat is generally the term of Chinese medicine, there is no internal heat in the clinic, in common terms, internal heat is generally referred to as fire, the regular performance of dry mouth, nasal dryness, oral ulcers, dry stools and other phenomena. Generally speaking, pregnant women who have a dry mouth or dry nasal cavity, generally can first improve the lifestyle to regulate, such as drinking more water, eat more vegetables and fruits, do not eat spicy and stimulating food, do not recommend the use of drugs to regulate. If there is no significant improvement through lifestyle modification, and the phenomenon of gradually aggravated symptoms, then it is necessary to consult a doctor in a timely manner, under the guidance of the doctor’s symptomatic treatment, usually pay attention to the diet, pay more attention to rest.