Postnasal drip syndrome, which is supposed to be postnasal drip syndrome, is usually treated with medication as well as surgical excision, but it cannot be eradicated and there is a possibility of recurrence. Postnasal drip syndrome, mainly due to a variety of reasons caused by the nasal secretion backflow into the throat and caused by frequent throat clearing action. It usually causes nausea, vomiting, foreign body sensation in the throat and other symptoms, which seriously affects the patient’s daily life. The treatment of postnasal drip syndrome needs to be based on the causative cause. If it is caused by allergic rhinitis, patients can take oral anti-allergy drugs, such as loratadine, montelukast sodium and so on. In case of chronic sinusitis and nasal polyps, surgical excision can be considered to cure postnasal drip syndrome. Therefore, if patients suffer from postnasal drip syndrome, they should go to the hospital in time for systematic examination, standardized treatment after clear diagnosis, and regular review to prevent recurrence of the disease.