Pharyngitis can be categorized as herpetic pharyngitis and fanconi pharyngitis, and usually does not directly trigger a cough until late in the course of the disease. Failure to intervene in time may lead to complications such as pulmonary edema, which in turn may lead to symptoms of cough. 1. Herpetic pharyngitis: the main symptoms include fever, nausea, refusal to eat, sore throat, abdominal pain, etc. Some patients may have a fever as high as 40 degrees, and may even cause convulsions, but generally do not have symptoms of cough. 2. Fanshuang pharyngitis: the main symptoms include sore throat, bad breath, difficulty in swallowing and headache, fever, loss of appetite, etc., and usually there is no cough. 3. Complications: If there is no effective intervention for a long period of time in pharyngitis, it may induce complications such as emphysema and pulmonary hemorrhage, which may lead to symptoms of coughing. It is recommended to consult a doctor in time to clarify the condition and follow the doctor’s instructions for treatment.