The pathogenesis of allergic rhinitis in traditional Chinese medicine mostly lies in the deficiency of qi and blood yang in viscera, which is mainly caused by the deficiency of qi and yang in lung, spleen and kidney, abnormal cold feeling and pathogenic factors in nasal orifices.

Cold syndrome of lung deficiency: the lung governs qi, enlightens the nose, closes the fur outside, and regulates opening and closing. When the lungs are full of qi, the external defense will be strong. If qi deficiency and lung weakness, the exterior of Wei is not firm, the principle is scattered, and the cold is abnormal, it is easy to take advantage of deficiency, which leads to disorder of propaganda and descending, stagnation of body fluid and unfavorable nasal orifices. Therefore, "Treatise on Febrile Diseases" said: "The lung qi passes through the nose, and its viscera are cold, and the cold enters the nose with the gas, so the body fluid cannot be collected by itself.

Deficiency of both lung and spleen: spleen belongs to soil and is the mother of lung gold. Sneezing (runny nose) lasts for a long time, and lung-qi deficiency is weakening day by day, which leads to the change of maternal qi, further aggravates lung-qi deficiency, unstable exterior, and is more susceptible to the evil of wind-cold and external qi. Therefore, repeated attacks of nasal phlegm last for a long time and mucosal lesions tend to be serious. Just like Li Dongyuan's "spleen and stomach theory". The theory of spleen and stomach ascending and descending said: "Lung gold is affected by evil, and the spleen and stomach are weak, so the lung cannot be born, but it is sick.

Kidney-yang deficiency: the kidney is the innate foundation, the root of all yang, and the main qi. At the same time, the fire of Mingmen warms the spleen and soil. Most patients with this disease have kidney-yang deficiency. In the case of deficiency of both lung and spleen, through this series of complicated pathogenesis changes, it can further spread to the fire of kidney life, resulting in the deficiency of three viscera, qi and yang, which can not be controlled in cold water, and is particularly vulnerable to the stimulation of cold and evil spirits. So sneezing is more frequent. Therefore, "Su Wen. Xuan Ming's "Five Qi" said: "This disease is caused by five Qi. If you have kidney deficiency, you sneeze."