Common causes of phlegm in the throat include reflux pharyngitis, post-nasal drip syndrome, bronchitis, etc. They are usually treated with medication, and the specific treatment will be decided by the doctor according to the patient’s actual condition. We should not blindly pursue the “quick phlegm”, we need to target the cause of the disease and remove the root cause of phlegm production in order to solve the problem of phlegm fundamentally. 1. Reflux pharyngitis: stomach contents reflux into the throat, irritating the mucous membrane of the throat, resulting in phlegm in the throat, foreign body sensation, cough and other discomforts. Generally apply acid-suppressing drugs, such as omeprazole, rabeprazole and other treatments, combined with gastrointestinal power drugs, such as mosapride. 2. Postnasal drip syndrome: refers to rhinitis sinusitis patients with nasal inflammatory secretions, backflow into the pharynx, self-conscious throat phlegm, available saline rinse nasal cavity, the application of glucocorticosteroid nasal sprays, such as fluticasone propionate nasal spray, tretinoin nasal spray, etc.; mucus drainage agent to promote the discharge of secretions, such as eucalyptus-pinol intestinal soft gelatin capsule. 3. Bronchitis: Inflammation of the mucous membrane of the trachea and bronchial tubes and their surrounding tissues caused by various reasons. Typical symptoms of bronchitis include coughing and phlegm in the throat. Generally, it can be treated by drugs against infection, such as Roxithromycin, Levofloxacin, Cephalosporin, etc.. And phlegm drugs such as acetylcysteine oral or nebulizer treatment. The phlegm in the throat suggests a hospital visit, after the diagnosis is clear, follow the doctor’s prescription medication.