Upper airway syndrome is characterized by chronic cough, tickling of the throat, and nasal congestion. Upper airway syndrome is clinically known as upper airway cough syndrome and was previously known as postnasal drip syndrome. Upper airway cough syndrome is associated with a variety of conditions such as allergic rhinitis, sinusitis, pharyngitis, laryngitis, and epiglottitis. The common symptom in patients with upper airway cough syndrome is a chronic cough, which is usually noticeable in the early morning or when changing positions. In addition to cough and sputum, there may be increased nasal secretions, nasal congestion, frequent throat clearing, pharyngeal mucus adhesion, postnasal drip and other symptoms. In addition, there can also be allergic allergic rhinitis manifestations, such as nasal itching, sneezing, watery runny nose and so on. Drug treatment is commonly used antihistamines, such as cetirizine hydrochloride, loratadine, ebastine and other drugs. Upper airway cough syndrome should pay attention to early treatment and prevention, need to go to the hospital in time, follow the doctor’s instructions for treatment and medication.