Nasal congestion and dry mouth may be on fire, may also be the body fluid deficiency or external wind-heat caused by the evil. 1. Fire: the patient’s usual diet of spicy and stimulating food, may lead to internal fire, nasal congestion and dry mouth, thirst and drinking, stomach burning, dry stools and other symptoms, need to clear heat and fire (to remove the body of heat and fire) treatment. 2. Deficiency of fluid: Patients who do not like drinking water in general or suffer from yin deficiency in old age may cause symptoms of nasal congestion and dry mouth, accompanied by dry mouth and thirst, dry eyes, dry skin, dry stools, etc., which need to be treated by nourishing yin and moistening dryness (nourishing yin essence and removing heat evils). 3. Exogenous wind-heat: patients who feel the evil of wind-heat will also have symptoms of nasal congestion and dry mouth, accompanied by symptoms such as malignant heat, red face and ears, sore throat, etc., which need to be treated by dredging wind and clearing heat. Clinical causes of nasal congestion and dry mouth have many reasons, patients with nasal congestion and dry mouth, it is recommended to consult a regular hospital in a timely manner, to clarify the cause of the disease, the cause of the treatment, do not take medication to delay the condition.