Mucus in the throat causes discomfort, foreign body sensation, pharyngeal secretions that are not easily discharged, itching, burning, dryness or irritation in the throat, and may also be slightly painful. As the posterior pharyngeal wall is usually stuck with thicker secretions due to chronic inflammation of the pharynx, as well as open-mouth breathing at night due to nasal, sinus, and nasopharyngeal lesions, irritating cough and nausea often occur in the morning. What are the preventive measures for mucus coming from the throat? 1, to avoid recurrent episodes of acute pharyngitis. 2, to carry out appropriate physical exercise, maintain a healthy regular work and rest, light diet, keep the mouth clean, avoid the stimulation of tobacco and alcohol, maintain a good state of mind so as to improve their overall immunity. 3, avoid contact with dust, harmful gases, irritating food poor air quality environment and other unfavorable irritants to the pharyngeal mucosa. 4, actively treat local related diseases that may cause chronic pharyngitis: such as chronic inflammation of the nasal cavity, sinuses, nasopharynx; chronic rhinitis, nasal septum deviation, chronic sinusitis, adenoid hypertrophy, snoring and other obstructive diseases; chronic tonsillitis; oral inflammation; gastroesophageal reflux. 5, actively treat systemic related diseases that may trigger chronic pharyngitis: such as anemia, indigestion, gastroesophageal reflux, heart disease, chronic bronchitis, bronchial asthma, rheumatism, liver and kidney disease. 6.Avoid long-term excessive use of sound. 7, try to avoid contact with allergens that cause chronic allergic pharyngitis.