There is a yellow-green nasal discharge and sputum, which, clinically, is most commonly a respiratory infection. The pathogen is mainly commonly caused by septic bacteria, mainly seen in Pseudomonas aeruginosa. It is mainly due to the decrease of immunity of the organism, after the decrease of immunity due to cold, rain, staying up late and alcoholism, which can make Pseudomonas aeruginosa enter the respiratory tract, causing congestion, edema and exudation of yellow-green purulent secretion from its mucous membrane. In the clinic can choose anti-inflammatory treatment, the main choice of antibiotics can choose ceftazidime, tobramycin, levofloxacin and so on. In addition, symptomatic treatment such as expectoration is also given to relieve the symptoms of nasal congestion and nasal discharge.