Phlegm in the throat, can not cough out, clinically there are the following diseases, the treatment of each disease is different: the first, the patient has phlegm in the throat and can not cough out because of chronic pharyngitis. This situation may be related to the existence of dry throat, etc. Patients are advised to take tablets for treating pharyngitis, do nebulization treatment, and take oral Chinese medicine preparations for pharyngitis for symptomatic treatment treatment to see if they can relieve this discomfort. Second, some patients have chronic bronchitis, pneumonia and other lung diseases, resulting in patients with mucous phlegm in the trachea can not be coughed out. In this case, the patient is advised to go to the respiratory medicine department for anti-inflammatory, cough suppressant, sputumification and nebulization treatment. Patients are advised to do percussion of the lungs to promote the expulsion of sputum. Thirdly, some patients have chronic rhinitis and sinusitis, and nasal snot flows backwards into the throat for a long time, resulting in phlegm in the throat that cannot be coughed out or swallowed. In this case, rhinitis and sinusitis need to be treated actively.