Coughing with phlegm in the throat may be caused by chronic pharyngitis, chronic bronchitis or tuberculosis, which can be relieved by medication or surgery. 1. Chronic pharyngitis: Diffuse chronic inflammation of the pharyngeal mucosa caused by various nasal diseases and chronic inflammation of the respiratory tract. When the pharynx is irritated, symptoms such as phlegm in the throat and cough may appear. Compound borax solution, furacilin solution and other gargles are commonly used. In addition to the above treatments, laser and low temperature plasma can also be used if the situation permits. 2. Chronic bronchitis: Chronic bronchitis can also be characterized by chronic cough and sputum. If there is an acute attack, the cough and sputum symptoms will be aggravated. Patients can take aminobromine hydrochloride tablets or compound licorice tablets and other drugs to relieve symptoms. If there is a basis for bacterial infection, such as coughing up yellow sputum, antibiotics such as amoxicillin can be used. 3. Tuberculosis: When the patient has symptoms such as repeated coughing, coughing up sputum and blood in sputum, it may be caused by tuberculosis. If diagnosed, anti-tuberculosis treatment should be carried out as soon as possible, and anti-tuberculosis medicines include drugs such as isoniazid, rifampicin and ethambutol. Since there are many reasons for coughing with phlegm in the throat, if the symptoms are not relieved or aggravated, it is recommended to go to the hospital for examination and diagnosis in a timely manner, and to carry out targeted treatment after clarifying the cause of the disease, so as to avoid the worsening of the symptoms due to the delayed condition.