Feeling strangled in the neck, this manifestation needs to be considered to be some diseases of the respiratory system, especially the upper respiratory tract lesions, the most common is acute pharyngolaryngitis, the pharynx appears to be heavy edema. Also seen in acute attacks of chronic pharyngolaryngitis, acute tonsillitis with more than two degrees of hypertrophy as well as nasal septum deviation, adenoid hypertrophy combined with significant postnasal drip syndrome. At this time, the pharynx appears obvious congestion, edema, and even a large amount of inflammatory material exudation, a large number of phlegm embolus appears, it is very easy to cause airway narrowing, and even cause hypoxia, respiratory difficulties, and even cause asphyxia. At this time, early diagnosis and treatment should be carried out to prevent the occurrence of respiratory failure.