Source: Verywell Health
Having one clogged nostril can be uncomfortable and frustrating, leaving you wondering why your nose is always blocked on one side. There are many possible reasons why one side of your nose is stuffy, including a deviated septum, nasal polyps, and a natural cycle of airflow through the nose throughout the day. When you identify why just one nostril is often clogged, you can address its causes and get relief.