One nostril is always ventilated, and clinically it is common to have acute rhinitis, acute attacks of chronic rhinitis, as well as acute severe infections in combination with deviated nasal septum, enlarged turbinates and nasal polyps. For the symptoms of non-ventilation on one side of the nose, you can choose symptomatic drugs, such as nasal drops containing pseudoephedrine to spot the nasal cavity. For nasal polyps, enlarged turbinates and deviated nasal septum, you can choose surgery to remove and correct them so that the airway is open.