Urticaria in children

Overview

Urticaria (also called hives) is a skin condition that causes raised, red, itchy bumps or welts. They can appear suddenly and change size or move around the body. In children, it is usually not serious and often goes away on its own.

Yes, urticaria is very common in children. Many children will have at least one episode of hives during childhood.

Urticaria can affect children of any age, but it is most common in school-aged children. It can also affect infants and teenagers.

Symptoms

Common symptoms

• Raised, red or skin-colored bumps (wheals) that can appear anywhere on the body
• Intense itching, stinging, or burning sensation
• Bumps that change shape, size, or location within hours

Symptoms in children

• Itchy bumps that may merge into large patches (called plaques)
• Bumps that can appear on the face, limbs, trunk, or even the scalp and inside the mouth
• Swelling of the lips, eyes, hands, or feet (called angioedema)

Causes

Main causes

• Allergic reactions to foods (like peanuts, eggs, or milk), medicines (like antibiotics), insect stings, or latex
• Infections, especially viral infections like the common cold or stomach bugs
• Physical triggers: cold, heat, sunlight, pressure on the skin, or exercise

Risk factors

• Having a personal or family history of allergies, asthma, or eczema
• Recent infection or illness
• Exposure to known allergens or triggers

When to see a doctor

See a doctor urgently if:

• If your child has difficulty breathing, swelling of the tongue or throat, dizziness, or fainting – call emergency services immediately.
• If hives appear after taking a new medicine or after an insect sting.
• If your child has a fever, looks very unwell, or has severe pain.

Book a routine appointment if:

• If your child keeps getting hives without a clear cause.
• If the hives last for more than 6 weeks (this is called chronic urticaria).
• If your child is very uncomfortable with itching that does not get better with simple measures.

Diagnosis

Doctors usually diagnose urticaria by looking at the rash and asking about symptoms, triggers, and your child’s medical history. No special tests are needed for a typical case.

Tests that may be done

• Skin prick tests or blood tests for allergies if a specific trigger is suspected
• A challenge test (under medical supervision) to confirm a physical cause like cold or pressure
• In chronic or unexplained cases, blood tests to check for underlying health conditions

What to expect at your appointment

Your child's doctor will examine the rash, ask about recent foods, medicines, or activities, and may recommend keeping a diary of when hives appear. Most of the time, no tests are needed, and the doctor will give advice on managing symptoms. If a serious allergy is suspected, they may refer your child to an allergy specialist.

Treatment

Urticaria in children often gets better on its own, but treatment can help relieve itching and swelling. The main approach is to avoid triggers and use simple remedies at home. If symptoms are bothersome, a doctor can recommend safe, age-appropriate treatments.

Self-care at home

• Apply a cool, damp cloth or ice pack to the itchy areas.
• Give your child a lukewarm bath with a small amount of baking soda or colloidal oatmeal.
• Dress your child in loose, soft cotton clothing to avoid irritation.
• Keep your child’s nails short to prevent scratching and skin damage.
• Try to keep your child calm and distracted from the itching.

Medical treatments

If self-care is not enough, a doctor or pharmacist may suggest an antihistamine syrup or tablet that is safe for children. These medicines help reduce itching and swelling. Sometimes a non-drowsy antihistamine is recommended for daytime, and a different type for nighttime if itching disrupts sleep. For severe or persistent cases, a doctor might prescribe a short course of steroid medicine. Never give your child any medicine without checking with a healthcare professional first.

Living with this condition

Most children with urticaria live a normal, active life. The rash comes and goes, and often resolves completely. When it flares up, simple home remedies and avoiding known triggers can keep your child comfortable. Keep a diary of when and where hives appear to help identify patterns.

Lifestyle tips

• Identify and avoid known triggers, such as certain foods, heat, or cold.
• Keep your home cool and avoid sudden temperature changes.
• Use mild, fragrance-free soap and laundry detergent.
• Teach older children not to scratch and to tell an adult if they feel swelling inside their mouth.

Diet and exercise

There is no special diet for urticaria unless a specific food allergy is identified. If you suspect a food trigger, keep a food diary and talk to your doctor. Exercise itself can sometimes trigger hives (called exercise-induced urticaria). If this happens, your child should stop exercising, cool down, and see a doctor for advice.

Mental health and emotional wellbeing

The itchiness and appearance of hives can be upsetting for children and cause worry for parents. Children may feel self-conscious or frustrated. Reassure your child that the rash is not contagious and will go away. If anxiety or stress seems to trigger or worsen hives, consider talking to a mental health professional or using relaxation techniques.

Prevention

Urticaria cannot always be prevented, but you can reduce the chance of flare-ups by avoiding known triggers. If your child has a known allergy, strict avoidance of that allergen is the best prevention. Keeping a symptom diary can help you identify and avoid triggers.

Complications

If left untreated

• Severe itching can lead to skin damage or infection from scratching.
• Swelling in the throat or tongue can cause breathing difficulty, which is a medical emergency.
• Chronic urticaria (lasting more than 6 weeks) can disrupt sleep, school, and daily activities.

Long-term outlook

For the vast majority of children, urticaria is a temporary condition that goes away on its own or with simple treatment. Even chronic urticaria often gets better over time. With proper management, children can continue to play, learn, and enjoy their daily lives. The outlook is very good, and most children outgrow their triggers.

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