Not all coughs are the same. Here's how to tell a barking croup cough from a whooping cough — and when to seek medical attention.
A cough in a child is never just a cough. The sound, timing, and associated symptoms all carry diagnostic information — and learning to read them can help you decide whether to watch and wait, or head to the clinic.
The barking seal cough of croup is one of the most distinctive. It's caused by viral swelling around the larynx and trachea and tends to strike suddenly at night in children under five. The voice is hoarse, breathing may sound strained (stridor), and the child is often frightened. Sitting upright in cool night air sometimes helps. If breathing is laboured or the child is turning blue, this is an emergency.
A whooping cough — pertussis — begins like a mild cold but escalates over one to two weeks into intense coughing fits that end in a characteristic 'whoop' as the child gasps for breath. In infants under 6 months, there may be no whoop at all — just episodes of stopping breathing. This is why vaccination matters so much; the DTaP schedule at 2, 4, and 6 months provides early protection.
Wet, productive coughs following a cold are usually viral and self-limiting. They may persist for 3–4 weeks after an upper respiratory infection — this is frustrating but normal. Antibiotics won't help. Honey (for children over 1 year), saline nasal drops, and adequate fluids are the evidence-based tools.
When should you call us? If a cough lasts more than 4 weeks, causes breathing difficulty, is accompanied by fever above 39°C, produces blood-tinged mucus, or wakes the child repeatedly through the night — book an appointment. Don't manage persistent cough symptoms alone.
