# Croup in Toddlers: The Barking Cough and Night-Time Care

> What causes croup's barky cough and stridor, calming night-time steps, and when it's more serious.

Stage: toddler - Topic: Health - Page: https://www.askcladle.com/guides/toddler/croup

Grounded in: AAP HealthyChildren guidance on croup, and common pediatric emergency practice. Summarized in Cradle's own words; none of these sources endorse Cradle. General information, not medical advice.

Reviewed: 2026-11

## TLDR

- Croup causes a barking cough and hoarse voice, usually from a cold virus, most often at 6 months to 3 years.
- At night: keep your child calm and upright; cool night air may help. Never use hot steam.
- Stridor at rest, struggling to breathe, drooling or blue lips means call 911.

## What it is

Croup is swelling of the voice box and windpipe, usually from a cold virus. It's most common
between 6 months and 3 years, peaks in fall and winter, and can come back more than once.

Signs:
- A loud cough that sounds like a seal or a dog's bark.
- A hoarse voice or cry.
- Stridor: a harsh, high-pitched sound when breathing in, mostly when crying or upset.
- Often a runny nose and low fever first, then the cough starts suddenly at night.

It typically lasts 3-5 days, and the first two or three nights are usually the worst.

## Night-time steps

1. Stay calm and keep your child calm. Crying tightens the airway; holding, rocking, singing or a
   favorite show help.
2. Sit them upright on your lap rather than lying flat.
3. Try cool air: wrap them up and go outside for a few minutes on a cool night, or stand by an open
   window or open freezer. Studies haven't proven mist or steam helps, but many families find cool
   air calming. Never use hot steam or boiling water near a child.
4. Offer drinks to keep them hydrated and soothe the throat.
5. Give fever medicine for comfort if needed, dosed by weight.
6. Sleep in the same room so you can hear them.

Cough and cold medicines don't help croup and aren't safe for young children.

## What the doctor may do

For moderate croup, a doctor usually gives a single dose of steroid medicine by mouth, which reduces
swelling within hours. For severe croup, an inhaled breathing treatment works fast in the clinic or
ER. Antibiotics don't help because croup is viral.

## Mild or more serious?

- Mild: barky cough, maybe stridor only when crying, playing and eating normally between coughs.
  Home care is usually enough.
- More serious: stridor while calm or resting, skin pulling in between the ribs or at the neck,
  breathing fast, trouble drinking.

## Not croup?

- A sudden cough or noisy breathing without any cold, especially during play or eating, can mean
  something was inhaled. See the choking guide.
- High fever, drooling, trouble swallowing and sitting forward to breathe point to a more serious
  throat infection, which is rare thanks to vaccines.

## When to check in

- Ask the pediatrician if croup lasts more than a week, keeps coming back, or happens in a baby
  under 6 months.
- See them the same day for stridor that goes away with calm but returns often, or fever lasting
  more than 3 days.
- If your child has stridor at rest, is struggling to breathe, drooling and unable to swallow, or
  has blue or gray lips, call 911.