Index
What Is Croup?
Croup is a viral infection of the upper airway, common in young children, that causes swelling around the voice box and windpipe. It leads to a distinctive barking cough, hoarseness, and sometimes difficulty breathing.
What Causes Croup?
- Viral infections, most commonly parainfluenza virus
- Other respiratory viruses, such as RSV or adenovirus
- Seasonal outbreaks, often in autumn and winter
What Are the Common Symptoms?
- Barking cough
- Hoarse voice
- Noisy breathing (stridor), especially when inhaling
- Fever
- Runny nose or cold-like symptoms
How Is Croup Diagnosed?
- Diagnosis is clinical based on symptoms and age
- Observation of breathing and cough
- Online GP consultations can assess severity and advise home care or urgent evaluation; in-person review for moderate or severe cases
How Long Does Croup Last?
- Most mild cases resolve within 3–7 days
- Symptoms often worse at night
- Severe cases may require hospital observation
Is Croup Contagious?
Yes. Croup is caused by viruses and can spread through respiratory droplets.
How to Feel Better and Recover Quickly
Self-Care at Home:
- Keep the child calm; crying can worsen breathing difficulty
- Use a cool-mist humidifier or take the child into cool night air
- Ensure hydration
- Monitor breathing carefully
Treatment from a GP:
- Oral or inhaled corticosteroids for moderate symptoms
- Supportive care and advice on monitoring
- Referral to hospital if breathing is compromised
When Referral Is Needed:
- Difficulty breathing, stridor at rest
- Rapid breathing or chest retractions
- Signs of dehydration or lethargy
When to Seek Urgent Medical Help
Seek urgent care if:
- Struggling to breathe or noisy breathing at rest
- Blue lips or face
- Severe agitation or lethargy
- High fever with difficulty breathing
How Dr.Online UK Can Help
We offer:
- Same-day online GP appointments
- Assessment and guidance for croup severity
- Prescriptions for steroids if appropriate
- Referral to hospital or paediatrics if needed