Nasal dryness is not necessarily due to lung yin deficiency, but may be caused by physiological factors, as well as other symptoms such as lung spleen qi deficiency and liver meridian heat depletion. Nasal dryness may be caused by physiological factors, such as windy, dry air and low humidity in the fall and winter seasons, which can easily cause dry lips and nasal passages, which can be relieved by using a humidifier, avoiding going out and blowing too much wind, and eating more fresh vegetables and fruits. Nasal dryness may also be due to dry heat injury to the yin, lung heat overload or stomach heat overload caused by the lung and kidney yin deficiency, lung and spleen qi deficiency and liver meridian depression and heat and other symptoms can appear nasal dryness, you need to go to the hospital Chinese medicine department in a timely manner, the Chinese medicine practitioner to identify the evidence to be treated, the symptom will be relieved. If the dryness of the nasal cavity is not relieved by eliminating physiological factors, it is necessary to consult a doctor in time for treatment under the guidance of a doctor.