My Baby Has Croup
Medically reviewed by Dr. Michael Okonkwo, MD, FAAP · Board-Certified Neonatologist
Content reviewed against published AAP, CDC, AAP guidelines
Last reviewed:
If your baby has been diagnosed with or you suspect has croup, here is what the evidence says.
The short answer
Croup is a viral infection that causes a distinctive barking cough and sometimes noisy breathing, especially at night. Most cases are mild and can be managed at home with cool mist and comfort. However, if your baby is struggling to breathe, making high-pitched sounds when inhaling, or can't settle, seek immediate medical care.
Key takeaways
- Croup is a viral infection that causes a distinctive barking cough and sometimes noisy breathing, especially at night. Most cases are mild and can be managed at home with cool mist and comfort. However, if your baby is struggling to breathe, making high-pitched sounds when inhaling, or can't settle, seek immediate medical care.
- Usually normal when: Your child has a barking cough but is breathing comfortably when calm
- Call your doctor if: Your child is struggling to breathe, with visible chest pulling in or flaring nostrils
- Varies by age — see the age-by-age breakdown below
“Fever itself is not an illness — rather, it is a sign or symptom that the body is fighting an infection. Fever stimulates certain defenses, such as the white blood cells, which attack and destroy invading bacteria.”
Parents everywhere have the same worry. You are doing the right thing by looking into it.
What Parents Should Know
According to AAP, CDC guidelines, croup is a viral infection that causes a distinctive barking cough and sometimes noisy breathing, especially at night. Most cases are mild and can be managed at home with cool mist and comfort. However, if your baby is struggling to breathe, making high-pitched sounds when inhaling, or can't settle, seek immediate medical care. At 0-6 months, croup is less common in babies under 6 months, so any barking cough or noisy breathing in a young infant warrants a same-day medical evaluation. Young babies have smaller airways and can develop breathing difficulty more quickly. Your doctor may prescribe steroids or monitor your baby closely. It is generally considered normal when your child has a barking cough but is breathing comfortably when calm. However, you should contact your pediatrician promptly if your child is struggling to breathe, with visible chest pulling in or flaring nostrils.
Normal vs. Concerning
When to Seek Immediate Care
- Your child is struggling to breathe, with visible chest pulling in or flaring nostrils
- Your child makes a high-pitched noise (stridor) even when calm and at rest
- Your child's lips or skin turn blue or pale
- Your child is drooling, can't swallow, or refuses all fluids
- Your baby is under 3 months with any barking cough or noisy breathing
By Age
What to expect by age
0-6 months
Croup is less common in babies under 6 months, so any barking cough or noisy breathing in a young infant warrants a same-day medical evaluation. Young babies have smaller airways and can develop breathing difficulty more quickly. Your doctor may prescribe steroids or monitor your baby closely.
6-12 months
Croup typically starts with cold symptoms and then develops into a distinctive seal-like barking cough, often worse at night or with crying. Your baby may have stridor (a high-pitched noise when breathing in). Cool mist from a humidifier or steam from a hot shower (with you holding your baby safely outside the shower) can help. Contact your pediatrician for guidance, as babies this age may need steroids.
1-2 years
This is a common age for croup. Most cases improve in 3-5 days. Your toddler's cough may sound worse than it is, especially at night. Keep them calm, use a cool mist humidifier, and offer fluids. Crying can make breathing harder, so comfort is key. If your child is working hard to breathe or has stridor at rest, seek medical care.
2-3 years
Croup is still common in this age group. Your child might say their throat hurts or that it's hard to breathe. Watch for signs of respiratory distress: flaring nostrils, visible ribs or belly moving excessively with breathing, or pale/blue lips. Most cases are mild, but don't hesitate to call your pediatrician if you're worried.
3 years+
Croup becomes less common as children get older. If your older child has barking cough and stridor, it's still likely croup, but your pediatrician may want to rule out other causes. Treatment is the same: comfort, cool mist, and monitoring for breathing difficulty.
What to Tell Your Pediatrician
- Describe when you first noticed has croup and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if your child has a barking cough and you want guidance on home care.
- Mention if your child seems more tired than usual or is eating less than normal.
- Bring a list of any questions or observations you want to discuss at the appointment.
What Should You Do?
When to take action
- Your child has a barking cough but is breathing comfortably when calm
- The cough is worse at night but your child can sleep with a humidifier
- Your child is drinking fluids, making wet diapers, and has some energy during the day
- The barking cough improves after a few minutes of cool mist or going outside in cool air
- Your child had a mild cold for a day or two before the barking cough started
- Your child has a barking cough and you want guidance on home care
- Your child seems more tired than usual or is eating less than normal
- The croup symptoms haven't improved after 3-4 days
- Your child has a fever lasting more than 3 days
- Your child is struggling to breathe, with visible chest pulling in or flaring nostrils
- Your child makes a high-pitched noise (stridor) even when calm and at rest
- Your child's lips or skin turn blue or pale
- Your child is drooling, can't swallow, or refuses all fluids
- Your baby is under 3 months with any barking cough or noisy breathing
What You Can Do at Home
- Keep track of when you notice has croup — noting the time of day, duration, and any triggers can help your pediatrician.
- Remember that your child has a barking cough but is breathing comfortably when calm — this is generally within the range of normal.
- At 0-6 months, focus on observation rather than intervention unless your pediatrician advises otherwise.
- Follow any care instructions from your pediatrician. Keep a written log of symptoms to bring to appointments.
- While monitoring at home, seek immediate care if your child is struggling to breathe, with visible chest pulling in or flaring nostrils.
Related Resources
Frequently asked questions
Is has croup normal?
When should I call the doctor about has croup?
When is has croup normal?
What causes has croup?
What should I mention to my pediatrician about has croup?
Is has croup normal at 0-6 months?
Is has croup normal at 6-12 months?
Should I go to the ER for has croup?
Does has croup go away on its own?
References
Doctor Visit Checklist
Bring this checklist to your next pediatrician visit to discuss My Baby Has Croup.
Things to mention
- Describe when you first noticed has croup and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if your child has a barking cough and you want guidance on home care.
- Mention if your child seems more tired than usual or is eating less than normal.
- Bring a list of any questions or observations you want to discuss at the appointment.
Observations to share
- Your child has a barking cough and you want guidance on home care
- Your child seems more tired than usual or is eating less than normal
- The croup symptoms haven't improved after 3-4 days
Urgent signs to report immediately
- Your child is struggling to breathe, with visible chest pulling in or flaring nostrils
- Your child makes a high-pitched noise (stridor) even when calm and at rest
- Your child's lips or skin turn blue or pale
My notes
From ismybabyalright.com — free, evidence-based baby health guides
All content follows our editorial policy and is reviewed against published clinical guidelines.
2,705 evidence-based guides6 authoritative medical sources5 medical advisory board members
Related Resources
Bottom line
Most cases of has croup are normal. Talk to your pediatrician if your child is struggling to breathe, with visible chest pulling in or flaring nostrils.
Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.
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