Phlegm in the throat, may be acute bronchitis, chronic laryngitis, chronic rhinitis, etc., need to be based on the cause of the disease, under the guidance of the doctor targeted medication. Different diseases with different drugs, do not recommend buying your own medicine. 1. Acute bronchitis: often preceded by symptoms of upper respiratory tract infection (e.g. nasal congestion, sore throat, etc.), and gradually accompanied by a dry cough or a small amount of mucous sputum, while the amount of sputum gradually increased, coughing symptoms intensified. If the infection is confirmed, consider giving antibacterial drugs such as levofloxacin and amoxicillin; if necessary, give expectorant drugs such as bromhexine. 2. Chronic laryngitis: mainly manifested as hoarseness, increased laryngeal secretion and laryngeal discomfort. Consider gargling with compound borax solution, boric acid solution, oral iodine tablets, peppermint tablets, watermelon cream tablets, etc. for treatment. 3. Chronic rhinitis: Nasal secretion backs up into the throat, causing it to produce a large amount of phlegm. Consider giving a professional nasal rinse and using topical nasal sprays such as budesonide nasal spray. It is recommended that the patient consult a doctor in a timely manner, after a clear diagnosis by the doctor, to give targeted treatment, do not blindly self-use.