Croup symptoms and fever: what to know

Croup is swelling around the voice box and upper airway, often after a viral illness. A rough, barking cough and a voice that sounds hoarse are typical. The noisy sound called stridor may be heard when the child breathes in, especially when upset or crying. Fever can accompany the infection, but its presence or absence does not show how narrow the airway is. A common cold may come before the croup symptoms.

Keep the child calm and upright, because crying can make noisy breathing more noticeable. Offer frequent drinks if swallowing is comfortable, and check the child regularly, including during sleep. Use fever medicine only as directed for the child’s age and weight, and avoid combining products unless a clinician or pharmacist has advised you. Do not use steam or give cough medicines without professional advice. A clinician can assess whether treatment or observation is appropriate.

Seek urgent help if the child has stridor while resting, pulls in at the ribs or neck, struggles to speak or drink, drools, becomes unusually sleepy, or develops blue or grey lips. Get prompt medical advice when fever persists, the child is getting worse, or you are worried about breathing. Keep the child upright while arranging care and follow local emergency guidance.

Ask whether the breathing noise occurs at rest, whether the fever needs treatment, and what changes should prompt an immediate return. You can also ask how much fluid is suitable and whether a child health consultation is needed.