Long-term phlegm in the throat may be caused by reflux pharyngitis, chronic sinusitis, chronic bronchitis and other causes. It is necessary to clarify the cause and treat the cause of the disease. 1. Reflux pharyngitis: the throat is stimulated by stomach acid for a long time, there will be dry throat, itchy, foreign body sensation, or feel the feeling of phlegm in the throat, can not spit out, can not be swallowed, you can use omeprazole acid suppression, combined with the throat medication to relieve. 2. Chronic sinusitis: some chronic sinusitis will appear nasal reflux symptoms, the patient will also feel phlegm in the throat, mainly to nasal reflux, need to actively treat sinusitis and other primary diseases. 3. Chronic bronchitis: chronic bronchitis patients symptoms mainly include coughing, coughing up phlegm, at this time the patient’s throat phlegm more to cough mainly, need to improve the lung CT and other checks, anti-inflammatory, expectorant symptomatic treatment. Long-term phlegm in the throat, there may be other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, give targeted treatment. Drugs should be used under the guidance of a doctor.