Croup is usually a viral illness that causes swelling around the voice box and windpipe in young children. It can produce a barking cough, hoarse voice and a high-pitched sound when breathing in, called stridor. Symptoms often worsen at night. Many cases are mild, but breathing effort and the child’s overall condition determine how urgent the situation is.
Recognising common symptoms
A barking cough and hoarseness are typical. Some children develop noisy breathing during inhalation, especially when upset or active. Mild cases may improve with reassurance and time, but stridor at rest, chest or neck pulling in with breaths, or increasing effort is concerning. A child may not be able to explain breathlessness, so observe breathing, colour, alertness and ability to drink.
What parents can do
Keep the child calm and comfortable because distress can worsen breathing effort. Offer small amounts of fluid if the child can swallow safely. Do not use hot steam treatments because they risk burns and have no established benefit for treating croup. Do not give cough medicines or other medicines without professional guidance. The clinician may prescribe treatment to reduce airway swelling depending on symptoms.
When to seek emergency help
Get emergency help if the child struggles to breathe, has stridor while calm, has blue or grey lips, drools or cannot swallow, becomes unusually sleepy or agitated, or appears exhausted. Do not delay to try home remedies. If breathing is noisy but the child seems stable, seek prompt clinical advice because croup can change over time.
After the episode
Follow the clinician’s instructions about medication and return precautions. Symptoms often last a few days, but each child’s course varies. Seek reassessment if breathing noise returns at rest, symptoms worsen, fever or illness is unusual, or the child has repeated episodes. Recurrent or atypical croup may need evaluation for other airway conditions.
Frequently asked questions
Does steam help croup? Hot steam is not recommended and can cause burns. Keep the child calm and follow medical advice.
Is a barking cough always croup? No. Other conditions can cause cough or noisy breathing, and severe breathing symptoms need urgent assessment.
When is stridor an emergency? Stridor at rest, breathing effort, blue lips, drooling or unusual drowsiness requires emergency care.
Explore our paediatric ENT consultation and voice and larynx assessment pages for more information about related care options. A clinician can advise whether either is appropriate based on the individual history and examination findings.
Related reading
- Persistent Hoarseness: Causes and When to See an ENT Specialist
- Sore Throat: Common Causes and When to Seek Medical Care
- Children Who Snore: When Sleep Breathing Needs Assessment