Severe bronchiolitis treatment: what to know

Bronchiolitis is an infection that causes swelling and mucus in the smallest airways, most often in babies and young children. Severe illness can make breathing visibly harder and may reduce a child’s ability to drink or breastfeed. Clinicians assess breathing effort, oxygen level, alertness, wet nappies, and feeding. A cough, fever, or wheezing can accompany bronchiolitis, but severity is judged by the child’s overall breathing and hydration rather than one symptom alone.

In a healthcare setting, treatment may include oxygen, gentle clearing of nasal secretions, and fluids when drinking is not enough. A nebuliser may be considered in selected situations, but medicines are not automatically helpful for every child with bronchiolitis. Keep the child upright while awake, offer small frequent feeds, and monitor wet nappies. Avoid cigarette smoke and do not give cough medicines unless a clinician specifically recommends them. A child health consultation can assess changes and decide whether observation or hospital care is needed.

Seek urgent medical help if the child is struggling to breathe, has pauses in breathing, develops blue or grey lips, is unusually floppy or difficult to wake, or cannot keep fluids down. Reduced wet nappies, very poor feeding, or rapidly worsening breathing also need prompt assessment. Babies who were born prematurely or have heart, lung, or immune problems may need earlier review. Call emergency services if breathing stops or the child becomes unresponsive.

Ask which breathing changes should trigger immediate review, how often to offer feeds, how to check hydration, and whether oxygen or fluids are needed. Confirm which medicines to avoid and when follow-up should happen.