Phlegm in the throat is often seen in laryngitis, tonsillitis, sinusitis, bronchitis and other diseases, which need to be identified and treated under the guidance of a doctor. 1. Pharyngitis is a chronic inflammatory disease of the mucous membrane of the throat, often manifested as phlegm in the throat, foreign body sensation, pain and other symptoms, can be used under the guidance of a doctor to clear the throat and pharyngeal medication, such as clearing the throat and pharyngeal granules, such as the combination of bacterial infections, the application of antibiotics, such as the combination of gastro-esophageal reflux, can be taken to inhibit the acidic drugs. 2. Tonsillitis is an acute and chronic inflammatory disease of the tonsil tissue, often manifested as a foreign body sensation in the throat, phlegm in the throat, difficulty in swallowing and other symptoms, and may be accompanied by fever in the acute stage. You need to choose antibiotics under the guidance of your doctor, such as amoxicillin, cefixime and so on. However, it should be noted that patients with a history of allergy to the relevant drugs are prohibited. 3. Sinusitis is an inflammatory disease of the mucous membrane in the nasal cavity of the sinuses, which will be manifested as nasal congestion, pus flow, nasal discharge leading to phlegm in the throat and other phenomena, checked by the ear, nose and throat doctor can be prescribed to use glucocorticoid drugs such as budesonide nasal spray, eucalyptus-pinene enteric capsule and other mucous membrane drainage drugs treatment. 4. Bronchitis: it is an acute and chronic inflammatory disease that occurs in the mucous membrane of the trachea and bronchial tubes. In addition to coughing up sputum, there may also be coughing, shortness of breath, dyspnea and other symptoms. Need to further improve the examination in the hospital after a clear diagnosis. 5. Phlegm in the throat may also be seen in tumors, cardiogenic diseases and so on. You need to go to the hospital for a detailed examination to make a clear diagnosis. If you have phlegm in your throat, it is recommended that you go to the hospital in time for early examination and treatment so as to avoid delaying your condition and causing serious consequences.