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Also known as: laryngotracheobronchitis · barking cough
A viral upper-airway infection (usually parainfluenza) — a barking, seal-like cough, stridor and hoarseness in a young child, typically worse at night. A single dose of corticosteroid (dexamethasone) is the key treatment.
Children aged roughly 6 months to 3 years, most often in autumn and winter.
Croup of any severity
Moderate-to-severe croup / stridor at rest
Caution: Effect is transient — observe for rebound before discharge.
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