If the exhaled air is hot, an inflammatory reaction in the respiratory tract needs to be considered. For example, the invasion of pathogens such as viruses and bacteria has caused the mucous membrane of the respiratory tract to become congested and edematous. In this case, the air in the airway is hotter and warmer than normal, and the patient’s body temperature may also have a tendency to gradually increase, causing the exhaled air to be hot. At this point, a targeted treatment is needed. Traditional Chinese medicine practitioners can choose Chinese medicines that clear heat, detoxify and moisten the lungs, such as clearing heat and detoxifying capsules and ichthyocetus syrup. Western medicine can target anti-pathogen treatment. For bacterial infections, antibiotics such as penicillin and clindamycin can be chosen. For viruses, drugs such as ribavirin and oseltamivir can be chosen.