Croup, a common infection that causes inflammation in the upper airway, results in a distinctive barking cough, sometimes accompanied by fever and breathing issues. This condition is more prevalent during the winter months.
Causes of Croup
The primary cause of croup is viral, although bacteria, allergies, or acid reflux can also trigger it. Common viruses responsible for croup include Parainfluenza, RSV, influenza, adenovirus, enteroviruses, and COVID-19. The infection spreads through direct contact or exposure to infected bodily fluids.
Risk Factors
Youth, particularly children aged 3 months to 5 years old, face a higher risk due to their narrower airways. Symptoms can vary, progressing from a runny nose to a cough resembling a seal’s bark, voice changes, fever, and stridor. Symptoms often worsen at night but may improve by morning.
Symptoms and Diagnosis
Diagnosis of croup involves evaluating symptoms such as cough changes, hoarse voice, fever, and stridor, alongside a health history review, physical examination, and potentially X-ray imaging.
In addition to these symptoms, a healthcare provider may also consider the age of the patient, as croup is most common in children between the ages of 6 months and 3 years. They may also inquire about recent exposure to respiratory infections or irritants.
During the physical examination, the provider will listen for the characteristic barking cough and stridor, which is a high-pitched sound that occurs during inhalation. In more severe cases, they may observe the child’s breathing pattern and look for signs of respiratory distress.
X-ray imaging may be used to rule out other conditions, such as epiglottitis or foreign object aspiration, that can present with similar symptoms to croup. However, it is not always necessary for diagnosing croup.
Treatment
Treatment for croup depends on symptom severity. Severe cases may necessitate hospitalization, while milder cases can typically be managed at home with medication, rest, and adequate fluid intake.
In addition to medication, it is important for individuals with croup to stay hydrated by drinking plenty of fluids. Humidifiers or steam from a shower can also help ease breathing difficulties. It is also recommended to keep the child calm and comfortable to reduce anxiety and stress, which can worsen symptoms.
Prevention
To reduce the risk of croup, emphasize handwashing, avoid sharing utensils, and ensure that sick children stay home until they have fully recovered.
Other preventative measures include keeping your child away from cigarette smoke, staying up to date on vaccinations, and maintaining good overall health through a balanced diet and regular exercise.
When to Seek Help
Immediate medical attention is crucial if a child with croup experiences worsening stridor, swallowing difficulties, breathing challenges, bluish skin discoloration, or other severe symptoms.
Monitoring Fever
Utilize a digital thermometer to monitor fever levels. Adhere to recommended temperature guidelines based on age and seek medical advice when necessary.
Additional Tips:
- Keep your child hydrated by encouraging them to drink fluids regularly.
- Use a cool-mist humidifier in your child’s room to help ease breathing difficulties.
- Avoid exposing your child to tobacco smoke or other irritants that can worsen croup symptoms.
- If your child’s symptoms do not improve or if they seem to be getting worse, contact your healthcare provider for further guidance.
Key Points
- Croup is caused by a viral infection that targets the upper airway, leading to inflammation.
- Children with croup may experience difficulty breathing, characterized by a harsh, barking cough.
- Other symptoms of croup can include a low-grade fever, runny nose, and a high-pitched sound when breathing in.
- Mild cases of croup can often be managed at home with measures such as humidified air and plenty of fluids.
- Severe cases of croup may require medical intervention, such as medications to reduce swelling in the airways.
- Preventing the spread of the virus that causes croup is crucial, and regular handwashing is a key preventive measure.
Tips for Healthcare Visits
- Clearly understand the purpose of your visit and your expectations.
- Prepare questions in advance to discuss during the appointment.
- Take notes on the diagnoses, treatments, and instructions provided.
- Educate yourself about prescribed medications and their potential side effects.
- Engage in a conversation with the healthcare provider regarding alternative treatment options.
- Seek clarification on the reasons behind recommended tests or procedures.
- Understand the consequences of not adhering to medical recommendations.
- Document the date, time, and purpose of your child’s follow-up appointment.
- Familiarize yourself with how to contact your child’s healthcare provider outside of regular office hours.
Croup impacts children by affecting the windpipe, lung airways, and voice box.
The majority of cases are observed in children between 6 months and 3 years of age, with a higher occurrence among 1-year-olds during late fall and early winter seasons. Croup is a rare condition in adults.
Symptoms of croup
Children with croup exhibit a barking cough, known as stridor, particularly noticeable during inhalation. Symptoms typically persist for a few days, with increased severity at night.
In addition to the barking cough, other symptoms of croup may include hoarseness, difficulty breathing, a harsh or raspy sound when inhaling, and sometimes a mild fever. It is important to monitor your child closely if they are experiencing these symptoms, as croup can sometimes lead to more serious respiratory issues.
When to get medical advice
Phone 999 or go to A&E if:
- Pale, blue, or grayish lips or skin coloration
- Severe breathing difficulties
- Rapid breathing or interruptions in breathing patterns
- Visible retractions in the throat area or accentuated windpipe structure
- Appearing weak, limp, or unresponsive
- Observing temperature changes in infants
Contact your GP practice urgently if:
- Increased difficulty breathing
- Painful breathing or coughing sensations
- Feelings of confusion, dizziness, or lightheadedness
- Symptoms of nausea, vomiting, or signs of dehydration
- Coughing up blood
- Experiencing high or low body temperatures
- Exhibiting a distinctive barking cough
In the case of closed GP practices, contact 111 for assistance.
If you are feeling unwell and unsure about your symptoms, it’s always best to seek medical advice. Don’t hesitate to call for help if you have any concerns about your health, as prompt attention can often prevent a more serious issue from developing.
Diagnosing croup
General practitioners diagnose croup based on symptom assessment, evaluation of cough sounds, and temperature readings. Refrain from attempting to self-diagnose your child’s throat condition. Tests may involve checking oxygen levels through pulse oximetry.
Hospital treatment may be deemed necessary following the GP’s assessment.
Treatment for croup
Mild instances of croup can be managed at home with rest, increased fluid intake, and corticosteroids prescribed to reduce throat inflammation. Immediate medical attention should be sought if symptoms worsen.
Pain relief for children
Paracetamol can help alleviate pain and reduce fever in children, while it is important to avoid aspirin in children under 16 years of age. Consult with a pharmacist or GP for guidance on pain management for your child. Refrain from administering cough medicines or decongestants with sedative effects to children with croup.
Hospital treatment
Severe cases of croup may require hospital treatment involving adrenaline administration or supplementary oxygen.
Croup is a common childhood illness that is characterized by a harsh, barking cough and difficulty breathing. It is most commonly caused by viral infections, with the parainfluenza virus being a common culprit. In addition to parainfluenza virus, other viruses such as influenza, adenovirus, and respiratory syncytial virus can also cause croup.
Children are more susceptible to croup as their airways are smaller and more prone to swelling. The infection typically starts in the nose and throat and then moves down into the windpipe and airways, causing inflammation and narrowing of the air passages.
Key facts
- Croup is a viral infection impacting the larynx and trachea.
- Prominent symptoms in most cases include a distinctive cough, stridor, and mild manifestations.
- Worsening symptoms may necessitate urgent medical intervention.
What is croup?
Croup, caused by viral infections like parainfluenza, can lead to airway constriction and breathing challenges. Severe cases require prompt medical attention and typically affect children aged 6 months to 5 years.
Symptoms of croup include a harsh barking cough, hoarseness, and difficulty breathing. The condition is often worse at night and can cause a high-pitched sound when inhaling, known as “stridor.”
Treatment for croup may include humidified air, corticosteroids, and in severe cases, nebulized epinephrine. It’s important to seek medical attention if your child is experiencing symptoms of croup, as it can be a serious respiratory condition.
What are the symptoms of croup?
Croup typically begins with cold symptoms and progresses to a raspy voice, stridor, and a cough resembling a bark. Common symptoms last for 2-5 days, peaking in severity on the second or third night. Coughing may persist even after recovery, and sporadic croup episodes can occur suddenly without prior indicators. For personalized medical advice, consult the Symptom Checker tool.
When should I call an ambulance or take my child to the emergency department?
For severe croup symptoms, contact triple zero (000) immediately if your child exhibits:
- Noisy breathing
- Stridor
- Distinctive cough
- Chest retractions
- Floppy behavior
- experiencing severe difficulty with breathing
- looking extremely unwell and fatigued
- having a pale complexion
- lips appearing blue
- dribbling and struggling to swallow
- showing reduced consciousness or floppiness
- try to stay calm
- avoid forcefully changing the child’s position
- keep an eye out for any changes in symptoms
- make sure the area is clear for the ambulance to arrive
- have important medical information ready to provide to the emergency responders
- if possible, have someone meet the ambulance outside to guide them to the patient
- they are under 6 months old and showing croup symptoms
- their chest caves in when they breathe
- they have noisy breathing even at rest
- they seem distressed or their symptoms are worsening
- an administration of a single steroid dose
- provide pain relief if necessary
- ensure the child remains well-hydrated
- keep the child in a calm environment
- Isolate sick children
- Educate on proper hygiene practices
- Maintain a nutritious diet for immune support
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If a child is displaying signs of respiratory distress, it is crucial to seek immediate medical assistance.
Do not attempt to transport an agitated child with blue-tinged skin or breathing issues to the hospital yourself. Instead, call for an ambulance.
What should I do while waiting for the ambulance?
While waiting for medical help:
What should I do if my child does not need emergency healthcare?
If there’s no immediate need for emergency care but you’re concerned, take the child to a doctor if:
If mild croup persists for more than 4 days or recurs, it’s important to see a doctor. Seek medical advice if you have any concerns.
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What causes croup?
Croup can be caused by viruses like the parainfluenza virus, which spreads through coughing and sneezing.
How is croup diagnosed?
A diagnosis of croup is typically based on symptoms and a doctor’s observation of the child’s breathing. Stridor can be a distinct indicator of croup. Additionally, a doctor may use a stethoscope to listen for the characteristic barking cough and other sounds associated with croup. In some cases, a throat swab or X-ray may be done to rule out other conditions.
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How is croup treated?
The treatment for croup depends on the severity of the condition. For mild to moderate cases at home:
Avoid steam inhalations as they are not recommended. In severe cases, seek immediate medical attention at the hospital.
What are the complications of croup?
Croup rarely leads to complications. Severe cases may require emergency medical intervention due to breathing difficulties or dehydration.
Can croup be prevented?
Croup is largely unavoidable, but taking measures for infection control can help limit the spread of viruses. Consider getting immunized against the flu to reduce the risk of croup.
Preventive Tips:
Resources and support
Contact a doctor or child health nurse for information about croup in infants and children. The Healthdirect helpline is available 24/7 for inquiries. Additional resources on croup are provided by Sydney Children’s Hospitals Network and NSW Health.
Do you prefer to read in languages other than English?
Explore resources in various languages at the Royal Children’s Hospital.
Speak to a maternal child health nurse
Call Pregnancy, Birth, and Baby at 1800 882 436 for assistance from a maternal child health nurse.
Sources:
Therapeutic Guidelines, Children’s Health Queensland, Sydney Children’s Health Network, The Royal Children’s Hospital, Healthy WA, SA Health, St John Ambulance Western Australia, JAMA Network
Last reviewed: July 2024
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