Abstract: Upper airway cough syndrome(UACS) used to be described as "postnasal drip syndrome", which is the main cause of chronic wet cough in children at 1 year old and above. The treatment based on syndrome differentiation for this disease bytraditional Chinese medicine has the characteristics of quick efficacy, few side effects, low recurrence rate andenhanced immunity and has been widely recognized. It is summarized that the cause of the disease is wind,phlegm, deficiency and stasis, and the core pathogenesis is "the deficiency of lung and spleen qi, retention of wind and phlegm, binding of phlegm and stasis, and discomfort in lung, noseand throat". It is suggested that the diagnosis by western medicine should be combined with TCM syndrome differentiation and constitution differentiation, and the treatment should be to disperse wind and relieve the lung and fever, strengthen the spleen and reduce phlegm and stasis, which is the main treatment principle, and the symptomatic treatment, such as clearing fever, nourishing yin, moistening dryness and promoting digestion, can also be used. Meanwhile, pay attention to some TCM exterior therapies, including external application of Chinese medicines, massage for children and indirect moxibustion.

Key words: Upper airway cough syndrome, Chronic cough, Traditional Chinese medicine, Children