There are two possibilities for sore throat caused by blowing air conditioner: First, upper respiratory tract infection, that is, cold and flu. Second, acute pharyngitis. Upper respiratory tract infection is the direct stimulation of cold air, resulting in the body being invaded by viruses and bacteria, causing systemic symptoms such as sore throat, dry throat, itchy throat, cough, coughing, phlegm, nasal congestion, runny nose, fever, muscle aches and pains. This kind of upper respiratory tract infection usually does not require oral antibiotics, however, patients need to go to the hospital to check the blood routine to see whether the white blood cells as well as neutrophils are increased, if the elevation is very obvious, then they can take oral cefixime, amoxicillin, penicillin V potassium tablets, and the treatment can gradually heal in a week. During the treatment period, patients need to drink more water and pay more attention to rest. Acute pharyngitis is caused by cold air irritation resulting in congestion, edema and lymphatic follicle hyperplasia in the throat, causing dry throat and sore throat, which is different from upper respiratory tract infection in that it has no systemic symptoms but only local symptoms. In terms of treatment, acute pharyngitis needs to be treated with oral Slowly and easily or Erdene granules. Patients need to drink more warm water, eat more vegetables and fruits, and avoid direct stimulation from cold air to gradually heal.