In life, if the patient has a nasal non-ventilation, it will easily lead to the patient’s breathlessness, and such a situation will easily induce the patient to have chest tightness and breath-holding. Patients are advised to go to the hospital for detailed examination of the specific causes of nasal non-ventilation, and can check the nasal endoscope directly to observe whether there is any foreign body, inflammation or any newborn swelling inside the patient’s nasal cavity, and if there is it must be actively dealt with. If after treatment, the patient’s chest tightness still does not improve, the patient had better take a chest CT to clarify the specific situation of the patient’s chest tightness, and after active treatment, the patient’s nose is not ventilated and chest tightness should be improved. In life, patients must exercise more to enhance resistance and avoid nose discomfort, so as not to induce patients to chest tightness.