Phlegm in the throat is very dry, there is a foreign body sensation, can be seen in chronic laryngitis, chronic tonsillitis or reflux laryngitis and other conditions. 1. Chronic pharyngolaryngitis: often caused by repeated episodes of acute pharyngolaryngitis, there may be pharyngeal mucosal congestion, submucosal connective tissue and lymphoid hyperplasia, there are no obvious systemic symptoms, there may be a foreign body sensation in the pharynx, pharyngeal dryness, pharyngeal itchiness, there may be mucous secretion adhering to the posterior wall of the pharynx, which may cause irritation and nausea when waking up in the morning. 2. Chronic tonsillitis: it can be evolved from repeated episodes of acute tonsillitis or tonsillar infection in the crypt fossa of tonsils, and the patients have symptoms such as sore throat, dry throat, itchy throat, foreign body sensation and irritating cough. 3. Reflux pharyngolaryngitis: mucosal damage or chronic symptoms caused by reflux of gastric contents into the pharynx, larynx and upper respiratory tract, which can cause hoarseness, increased laryngeal secretion, dry mouth, and foreign body sensation in the throat. When throat discomfort occurs, you can consult a doctor in time to clarify the cause of the disease and then follow the doctor’s instructions for treatment.