If a patient has a backflow of snot into the mouth, chronic nasopharyngitis is usually considered. Patients can get a clear diagnosis by improving nasal endoscopy and CT of sinuses. Treatment often requires the use of oral nasal abdomen and orthodontic pellets, or Cangzhi rhinitis drops. Patients can also use nasal spray of Azelastine hydrochloride, together with Budesonide nasal spray, to reduce the symptoms of nasal mucosal nasal discharge. In addition, patients need to take orally Glycyrrhiza glabra tablets, or Bupleurum anti-inflammatory oral solution to reduce the discomfort of the patient’s throat. Patients should exercise more in general to enhance their resistance and avoid frequent colds to avoid aggravating the symptoms of chronic nasopharyngitis. In addition, sinusitis can also present with nasal reflux, which can be clarified during the perfect sinus CT.