There are many causes of sore throat and cough: First, the most common cause is viral cold, which usually occurs when there is a viral cold. Second, bacterial infections, which can also lead to sore throat and cough, although bacterial infections usually occur only after viral infections, most commonly tonsillitis. Third, a sore throat caused by external stimuli, which in turn can lead to coughing, such as inhalation of irritating gases or excess air, can also lead to a sore throat and cough. To prevent respiratory diseases, you need to pay attention to keeping warm in general, you should wear a mask during the flu outbreak season, and you should not go to places with a lot of people or places with serious environmental pollution.