Phlegm backflow into the throat, mainly due to rhinitis, sinusitis produced by the backflow of nasal mucus due to the choice of general treatment, topical medication, oral medication, etc., after standardized treatment, most of them can be cured. 1. General treatment: daily patients should drink more water to dilute phlegm, and at the same time, you can choose saline rinse nasal cavity, can reduce the irritating factors in the nose, relieve the symptoms of rhinitis. 2. Topical medication: glucocorticoid nasal spray can be chosen to improve the symptoms, such as tretinoin nasal spray, budesonide nasal spray. 3. Oral medication: For rhinitis-sinusitis caused by bacterial infection, anti-infection treatment, such as cefdinir, amoxicillin and so on. Allergy-induced rhinitis, oral anti-allergy drugs, such as cetirizine, loratadine, etc.; if the phlegm is not easy to discharge, with the phlegm drugs, such as eucalyptus-pinocampus, oleander, etc.. Phlegm backflow into the throat under active treatment, most of them can be cured, it is recommended that patients go to the hospital in a timely manner, in accordance with the doctor’s instructions to take standardized treatment and medication, do not use drugs indiscriminately, so as not to lead to adverse consequences.