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Croup

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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

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