Hives in children

Overview

Hives (also called urticaria) are raised, red, itchy bumps on the skin that can appear suddenly. They happen when the body releases a chemical called histamine as part of an allergic reaction or irritation. In children, hives are common and usually go away on their own.

Yes, hives are very common in children. Many children will have at least one episode of hives.

Hives can affect children of all ages, from babies to teenagers. They are slightly more common in children with allergies or a family history of allergies.

Symptoms

Common symptoms

• Raised, red or skin-coloured welts (bumps)
• Intense itching
• Bumps that change shape and size
• Welts that come and go over hours

Symptoms in children

• Bumps may appear suddenly after an infection or food
• Children may scratch a lot, causing skin to become sore
• Hives can occur with a mild fever if caused by an infection

Causes

Main causes

• Allergic reactions to foods (e.g., nuts, eggs, shellfish)
• Infections (viral, like colds or stomach bugs)
• Medications (antibiotics, pain relievers)
• Insect bites or stings
• Physical triggers: heat, cold, pressure, sunlight, or exercise

Risk factors

• Personal or family history of allergies, eczema, or asthma
• Previous episode of hives
• Exposure to known triggers
• Recent illness

When to see a doctor

See a doctor urgently if:

• If your child has trouble breathing or swallowing (call emergency immediately)
• If hives appear after a known severe allergic reaction
• If hives are accompanied by fever, joint pain, or feeling very unwell

Book a routine appointment if:

• If hives last more than a few days
• If hives recur frequently
• If you suspect a specific trigger and want advice on avoiding it

Diagnosis

A doctor will usually diagnose hives by looking at your child's skin and asking about symptoms, recent exposures, and medical history.

Tests that may be done

• In most cases, no tests are needed
• If a cause is not clear, the doctor may recommend allergy skin tests or blood tests
• If hives are chronic, the doctor may check for underlying conditions

What to expect at your appointment

The doctor will examine the rash and ask about when it started, what your child ate or was exposed to, and if there are other symptoms. They may prescribe medication to help with itching and swelling.

Treatment

Treatment for hives focuses on relieving itching and avoiding triggers. Most mild cases do not require any treatment.

Self-care at home

• Apply a cool compress or damp cloth to itchy areas
• Dress your child in loose, soft cotton clothing
• Avoid known triggers (e.g., avoid the food that caused it)
• Use fragrance-free moisturisers to soothe the skin
• Keep your child's fingernails short to prevent skin damage from scratching

Medical treatments

If hives are bothersome, a doctor may recommend an over-the-counter antihistamine (liquid or tablet) suitable for your child's age. For severe hives, a doctor may prescribe stronger antihistamines or, very rarely, a short course of oral steroids. Always follow the doctor's advice on dosage.

Living with this condition

Having hives can be uncomfortable for your child, but they usually go away quickly. Try to keep your child calm and comfortable. If hives happen often, work with your doctor to identify and avoid triggers.

Lifestyle tips

• Keep a diary of episodes to identify patterns and triggers
• Teach your child not to scratch – try gently tapping the skin
• Use mild, fragrance-free soaps and detergents
• Maintain a consistent bedtime routine to reduce stress

Diet and exercise

There is no special diet for hives unless a specific food is identified as a trigger. Exercise can sometimes trigger hives (exercise-induced urticaria); if this happens, cool down gradually and talk to a doctor.

Mental health and emotional wellbeing

Chronic hives can be stressful for both child and family because of itching and worry about triggers. It can affect sleep and mood. Speak to your healthcare provider if you feel anxious or if your child seems distressed.

Prevention

You cannot always prevent hives, but you can reduce the risk by avoiding known triggers. If your child has a known allergy, make sure the household is aware and avoid that substance.

Complications

If left untreated

• Severe itching leading to skin damage or infection from scratching
• In rare cases, hives can be a sign of a more serious allergic reaction (anaphylaxis)
• Chronic hives (lasting more than 6 weeks) can affect quality of life

Long-term outlook

The outlook for children with hives is very good. Most cases resolve on their own without problems. With proper management and avoidance of triggers, children usually have no long-term effects.

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