The symptom of dyspnea in the throat in the middle of the night requires consideration of inflammatory reaction in the throat, which is commonly caused by acute attack of chronic pharyngitis, acute pharyngitis, obvious congestion and edema in the mucous membrane of the throat, commonly caused by inhalation of cold air, pollen, oil smoke or infection by viruses, bacteria and other pathogens due to the decline of immunity. In the middle of the night, especially during sleep, people are lying down, part of the inflammatory secretions in the airway will return to the pharynx will make the airway obstructed, the symptoms of dyspnea, and also seen in bronchial asthma, such symptoms will also occur at night.