1. Nasal Congestion
A common cause of blocked nose in a baby is an infection or allergy resulting in nasal congestion with purulent or watery discharge.
2. Enlarged Adenoid Glands
Adenoid glands (pharyngeal tonsils) are located in the roof of the throat, behind the nose. They usually start to shrink after about age 5 and usually disappear until teenage years. Enlarged adenoid glands (adenoids) can be present from birth or can become temporary enlarged during an infection (adenoiditis), especially in early childhood. Symptoms are breathing through the mouth, snoring, difficult swallowing and throaty voice. When there is no infection, there is also no nasal discharge. A common complications are sinusitis and infection of the middle ear. If problems are constant, adenoids should be surgically removed (adenoidectomy). Sometimes adenoids are enlarged from no obvious reason and often shrink without treatment so pediatrician should be consulted about removal.
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