Chronic pharyngitis cough is characterized by a dry cough without sputum or with a little sputum, and it is not easy to cough up, resulting in itching, local swelling and pain in the throat, and a shallow cough, usually triggered by pharyngeal discomfort, usually an irritating recurrent cough, which can be triggered by inhaling irritating odors. It can be treated with oral chemotherapy tablets and tablets to achieve expectoration and reduce inflammation of the mucous membrane of the pharyngeal cavity, and boric acid solution can also be applied for gargling. If the cough has no obvious effect after medication, electronic laryngoscopy and CT examination of the lungs should also be performed to exclude other diseases. Patients with chronic pharyngitis should pay attention to a light diet and avoid spicy food stimulation, which may lead to congestion of the mucous membrane of the throat and aggravate the symptoms of pharyngitis. They should drink more warm water, eat more fresh vegetables and milk, eggs, lean meat to enhance resistance, and avoid exposure to harmful gases.