First Aid for Croup (Acute Obstructive Laryngotracheitis) in Children

One of the most common causes of these symptoms is croup, also known as acute obstructive laryngotracheitis. Although the symptoms can be quite pronounced, the condition is mild in most children and responds well to treatment.

Understanding what is happening to the child and knowing the basic first-aid steps can help parents act with greater confidence and avoid unnecessary stress.

What Is Croup?

Croup (acute obstructive laryngotracheitis) is an acute inflammation of the larynx and the adjacent parts of the respiratory tract. It is accompanied by swelling, which can cause the airways to narrow. Croup is one of the most common causes of a sudden barking cough and noisy breathing in young children.

Croup most often develops as a result of a viral infection and occurs in children aged 6 months to 5 years.

Although the symptoms may look very alarming, most cases of croup are mild and respond well to treatment. The most important thing for parents is to know what to do before the child is examined by a doctor and which warning signs require urgent medical attention.

What Causes Croup?

In most cases, croup is caused by a viral infection.

The most common causes include:

• parainfluenza viruses;
• respiratory syncytial virus (RSV);
• adenoviruses;
• rhinoviruses;
• influenza viruses;
• SARS-CoV-2 and other respiratory viruses.

Croup occurs more frequently in autumn and winter, when respiratory viruses circulate actively.

Main Symptoms

The typical symptoms of croup usually develop gradually.

One to two days before the main symptoms appear, a child may experience:

• runny nose;
• nasal congestion;
• fever;
• sore throat;
• general malaise.

Characteristic symptoms then develop.

Barking Cough

The cough has a distinctive harsh sound, resembling a dog's bark or a seal's call.

Hoarse Voice

The voice becomes hoarse, raspy, or significantly quieter.

Stridor

Stridor is a harsh, high-pitched sound heard when breathing in. It occurs because the upper airways have become narrowed. If stridor persists even when the child is calm, this is a warning sign that requires urgent medical assessment.

Difficulty Breathing

When the airways become more significantly narrowed, the following signs may appear:

• rapid breathing;
• retraction of the spaces between the ribs;
• retraction of the hollow at the base of the neck above the breastbone;
• noticeable effort when breathing;
• restlessness or marked agitation.

Croup symptoms often become worse at night.

What Should Parents Do at Home Before a Doctor Examines the Child?

1. First, Calm the Child

This is one of the most important recommendations.

When a child cries, becomes anxious, or panics, breathing difficulties may become worse.

Try to:

• hold the child if this makes them more comfortable;
• speak in a calm voice;
• stay close to them;
• avoid unnecessary procedures or actions that may frighten the child.

Current recommendations advise minimizing stress and avoiding disturbing the child unnecessarily.

2. Do Not Force the Child to Lie Down

Many children with croup find it easier to breathe while sitting or in a semi-upright position. You can hold the child or allow them to find a comfortable position on their own.

Do not try to force the child to lie down if this makes them more anxious or worsens their breathing.

3. Offer Fluids

If the child is breathing without significant difficulty and can swallow safely, you can offer small amounts of their usual drinks:

• water;
• compote or fruit drink;
• breast milk.

Do not force the child to drink. If breathing is significantly impaired or the child has difficulty swallowing, do not try to give them food or drinks — seek medical help immediately.

4. Monitor the Child's Breathing

Pay attention to the following signs:

• whether there is noisy breathing in when the child is calm;
• whether the child has difficulty breathing in;
• whether the spaces between the ribs or the area above the breastbone are pulling inward;
• whether the child is becoming unusually lethargic or sleepy;
• whether the child can swallow and drink normally;
• whether the color of the lips or skin is changing.

Assessing the child's breathing and overall condition is more important than the intensity of the cough.

If noisy breathing occurs at rest, breathing is noticeably difficult, or the child's condition is deteriorating, urgent medical attention is required.

5. Cool Fresh Air May Provide Temporary Relief

For some children, spending a short time in cool, fresh air may reduce the severity of croup symptoms.

If the child's condition allows, you can ventilate the room or briefly go outside, making sure the child is dressed appropriately for the weather.

However, the effect of cool air may be temporary, and there is insufficient evidence to consider this method a primary treatment. It does not replace a doctor's examination and must not delay calling emergency services if dangerous symptoms are present.

Do not use hot steam or steam inhalations: they have no proven benefit for croup and may cause burns.

Modern Treatment for Croup

The main goal of treatment is to reduce swelling in the airways and make breathing easier.

Depending on the severity of the condition, a doctor may prescribe:

• Glucocorticosteroids — medications that reduce swelling of the larynx and relieve croup symptoms.
• Nebulized adrenaline (epinephrine) — may be administered by healthcare professionals for moderate or severe croup to rapidly reduce swelling and ease breathing.
• Oxygen support — when indicated, particularly if blood oxygen levels are low.

The choice of treatment depends on the severity of the symptoms and the child's overall condition. Medications are prescribed and administered by a healthcare professional according to clinical indications.

Do not use hormonal medications, adrenaline, or other medicines on your own without a doctor's prescription.

When Should You Call an Ambulance Immediately?

Urgent medical attention is required if:

• noisy breathing persists even when the child is resting;
• the child has difficulty breathing in;
• there are pronounced chest retractions during breathing;
• the child cannot drink because of breathing difficulties;
• the child becomes unusually lethargic or sleepy, or is difficult to wake;
• the lips, tongue, or skin turn blue;
• symptoms worsen rapidly;
• breathing becomes shallow or irregular, or the child has pauses in breathing.

Children under 6 months of age who have symptoms resembling croup need urgent medical assessment, as this presentation requires particularly careful evaluation at this age.

Seek medical help immediately if the child cannot swallow saliva, saliva is drooling from the mouth, they experience severe pain when swallowing, or they try to sit leaning forward because of difficulty breathing. These symptoms may indicate other dangerous conditions that require emergency care.

In Ukraine, call 103 for emergency medical assistance.

Prevention

It is impossible to prevent croup completely, but the following measures can help reduce the risk of respiratory infections:

• washing hands regularly;
• ventilating indoor spaces;
• avoiding close contact with people who have signs of a respiratory infection;
• getting enough sleep;
• eating a balanced diet;
• engaging in age-appropriate physical activity;
• vaccination according to the National Immunization Schedule;
• annual influenza vaccination in accordance with a doctor's recommendations.

Vaccination does not protect against all viruses that can cause croup, but it helps prevent certain infections and their serious complications.

Croup is one of the most common causes of a sudden barking cough and noisy breathing in young children. Although the symptoms may look alarming, in most cases the condition responds well to treatment and resolves without serious consequences.

The most important things for parents are to remain calm, monitor the child carefully, and recognize the warning signs that require immediate medical attention.

Seeking medical advice promptly and following current recommendations can help improve the child's condition and ensure a safe recovery.