Wellington Children's Hospital
Croup is a viral infection of the voice box (larynx) and windpipe (trachea).
It usually affects children up to the age of 5 years.
Croup lasts 3-4 days, the cough then changes to sound moist and productive of phlegm.
This cough may last for 2-weeks.
- Croup - Parent / Caregiver Information (PDF, 99.6 KB)