1. Causes of baby\’s nasal congestion There are many reasons for baby\’s nasal congestion, which may be caused by colds, allergies, climate change, etc. In addition, babies\’ noses are relatively small and are easily blocked by foreign objects, which can also cause nasal congestion. 2. How to relieve baby\’s nasal congestion 1. Clean the nose: Use saline or nasal drops to clean the baby\’s nose, which can effectively relieve the symptoms of nasal congestion. 2.Keep wet