Rhinitis side of the long-term blockage may be nasal polyps, chronic hypertrophic rhinitis, nasal septum deviation and other causes. 1. Nasal polyps: rhinitis patients on one side of the nasal cavity due to the nasal cavity or sinus mucosal tissue benign hyperplasia, thus causing nasal polyps, resulting in nasal blockage breathlessness. 2. Chronic hypertrophic rhinitis: patients with this disease may be due to unilateral hypertrophy of the nasal turbinate, causing long-term blockage of one side of the nasal cavity. 3. Deviated nasal septum: due to congenital abnormal development of nasal septum, resulting in deviated nasal septum, it is very likely that there will be breathlessness in the deviated side of the nasal cavity of one side of the patient caused by long-term blockage. Nasal cavity, sinus tumors, etc., can also lead to rhinitis on one side of the long-term blockage, you should actively go to the hospital for examination, after the cause is clear, under the guidance of the doctor for the appropriate treatment.