Judgment of Meibomian Qi (similar to pharyngeal foreign body sensation) can be determined by the doctor through symptoms, throat examination, and so on. 1. Symptoms: The patient mainly manifests non-painful foreign body sensation in the pharynx, such as lump obstruction, burning, itching, urgency, adhesion, etc., which cannot be swallowed or spit out. This foreign body sensation is usually obvious when empty throat, but reduce when eating, and the symptom is mostly in the mood (emotional discomfort), depressed mood when the symptoms worsen. 2. Laryngeal examination: when examining the throat area, all the manifestations are still relatively normal and there are no very obvious positive symptoms. In addition, before carrying out the diagnosis of Meibomian Qi, the throat and esophagus will be examined in detail to exclude organic diseases such as laryngeal paralysis (redness, swelling and pain in the pharynx, or dryness, foreign body sensation, or itchy discomfort in the pharynx, and difficulty in swallowing), milky moth (related to tonsillitis in Western medicine), and tumors of the pharynx and esophagus. After the examination, it is clear that there is no organic lesion, it can be judged to be prune gas. Patients with the above symptoms need to consult a doctor in time, who will give targeted treatment after clarifying the cause of the disease.