Clinically, if the feeling of phlegm in the nasal epiglottis is high, the first thing to look at is the time of onset of the patient. If the symptoms appear within a short period of time, it is important to consider whether the patient has recently developed a cold or rhinitis, and this feeling will appear when secondary infection and phlegm are sticky. Clinical treatment should be symptomatic, feeling that the phlegm is not easy to cough up should drink more water, and taking phlegm-reducing drugs for treatment can achieve good results and cough up the phlegm. In addition, observe whether the patient has symptoms related to infection. If the sputum is very yellow and thick, the patient has obvious sore throat and fever, and the inflammatory indexes such as blood routine, C-reactive protein or calcitoninogen are significantly increased, the combined bacterial infection should be considered at this time, and the patient needs to be given anti-inflammatory drugs, and if necessary, consider whether the patient has lower respiratory tract infection. If there is pneumonia, it is necessary to perform lung CT and other examinations to determine the regular treatment plan after the diagnosis is clear. If it is pneumonia, anti-inflammatory drugs should be applied for treatment. However, if it is ordinary sputum increase without the above symptoms, simple application of phlegm-reducing drugs, drinking more water and paying attention to local cleanliness will be sufficient.