Coughing and coughing up white phlegm are common in chronic laryngitis, acute bronchitis and reflux pharyngitis, which need to be treated with general therapy and medication according to the causes and symptoms. 1. Chronic laryngitis: chronic inflammation stimulates the pharyngeal mucosa to become congested, producing white secretions that stimulate the pharynx, causing coughing, throat itching and coughing up white phlegm. Patients should maintain oral hygiene and cleanliness, and at the same time can follow the doctor’s instructions with compound iodized glycerin, 5% silver nitrate solution or 10% weak protein silver solution coated with pharynx, anti-inflammatory treatment. 2. Acute bronchitis: by the cold season or the temperature suddenly become cold and other conditions stimulate the bronchial tube will cause the pharynx produces white mucous phlegm, coughing throat itchy situation. Patients can take medicines such as aminophylline, salbutamol, aminobromine hydrochloride, etc. as prescribed by the doctor for asthma, cough and phlegm expulsion treatment. 3. Reflux pharyngolaryngitis: gastric contents reflux to the throat, stimulate the local mucosa caused by cough, itchy throat, cough white sputum. Patients should avoid high-fat diet, avoid eating chocolate, spicy and acidic food. At the same time, you can follow the doctor’s instructions to take drugs such as omeprazole, lansoprazole, rabeprazole, etc. to inhibit the secretion of gastric acid, to relieve the symptoms of reflux. If the symptoms of coughing and throat itching and coughing up white sputum persist, you should actively consult a doctor for a systematic examination and standardized medication and treatment after a clear diagnosis.