There are a number of reasons why your nose may not be working, and they may be caused by certain diseases, such as a deviated septum, nasal polyps, and rhinitis. A blocked nose can also be referred to as nasal congestion, which means that there is a substance in the nose that prevents breathing, making air circulation difficult. 1. Deviated septum: If the nose has been damaged by trauma, resulting in a deviated septum. This condition can cause a change in the airflow conditions in the nasal passages, resulting in a blocked nose. 2. Nasal polyps: Nasal polyps can block the nasal airway, resulting in obstruction of airflow in and out of the nasal cavity, thus causing the nose to be blocked. 3. Rhinitis: If you suffer from rhinitis, the mucous membrane of the nasal cavity will be swollen, resulting in a blocked nose. Rhinitis are acute rhinitis, allergic rhinitis, chronic rhinitis and so on. Therefore, it is recommended to consult a doctor in a timely manner to clarify the cause of the problem and provide targeted treatment and treatment in a timely manner.