Reflux of nasal mucus may be associated with foreign body sensation and dripping sensation in the nasopharynx, and some patients may also have painful and tingling manifestations in the nasopharynx. Once the nasal mucus enters the throat, it can induce patients to have clinical symptoms related to irritating dry cough in the throat, itchy throat and repeated throat clearing. If the patient is in the acute stage, he or she will also have fever, headache, nasal discomfort and other related manifestations. Clinically, nasal reflux is mostly caused by patients with chronic rhinitis, chronic sinusitis and other diseases. For this disease, the clinical emphasis is on treating the nose, and you can choose to apply nasal spray hormone or oral mucus promoter, and apply antibiotics and nasal rinse as appropriate for a comprehensive treatment in order to relieve the patient’s symptoms.