The pharynx is accompanied by a dry crust with bad breath. On examination, the pharyngeal mucosa is dry, thin, or in severe cases, scaly and shiny. The lesion may be covered with purulent dry crusts and may cause tinnitus and hearing loss if the lesion continues to the eustachian tube. If the lesion spreads to the larynx, it can cause hoarseness, which is the clinical manifestation of chronic atrophic pharyngitis or chronic dry pharyngitis. However, chronic atrophic pharyngitis or chronic dry pharyngitis is poorly treated and the symptoms are prone to recurrence, so its prevention is especially important. So how exactly do you need to prevent it? Please see the following points. 1. Avoid recurrent attacks of acute pharyngitis. 2, to carry out appropriate physical exercise, maintain a healthy regular work and rest, a light diet, keep the mouth clean, avoid the stimulation of alcohol and tobacco, and maintain a good state of mind to improve their overall immunity. 3, avoid contact with dust, harmful gases, irritating food poor air quality environment and other unfavorable stimuli 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 cause 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. In addition, the usual honeysuckle, chubby sea bubble some water to drink, spring wind, dust is more serious go out best to wear a mask protection.