Urticaria in children and adults: symptoms, causes, and treatment

Urticaria is a common skin reaction characterized by the sudden appearance of itchy hives or patches. The rash can occur on different parts of the body, change shape, and disappear before reappearing elsewhere. This reaction can occur at any age, and its causes are not always related to an allergy.

It is important to consider not only the appearance of the rash but also how long the symptoms last, possible triggers, and the person’s overall condition.

What is urticaria?

Urticaria is a condition in which substances are released in the skin, causing blood vessels to dilate and characteristic hives to appear. They are usually pink or red and accompanied by itching.

An individual hive may disappear within a few hours, but new ones can appear on other parts of the body. Sometimes, deeper swelling of the skin or mucous membranes develops alongside the superficial rash.

What does urticaria look like and what are its symptoms?

The main symptoms of urticaria usually appear suddenly. They include:

• raised pink or red welts on the skin;

• intense itching;

• burning or irritation;

• changes in the shape and size of the rash;

• individual hives merging into larger areas;

• new lesions appearing on other parts of the body.

   

In some cases, swelling of the lips, eyelids, face, or tongue may occur. If the swelling spreads to the throat and is accompanied by breathing difficulties, emergency medical attention is required.

How does urticaria differ in children and adults?

The external manifestations may be similar, but the triggers and course of the condition can differ.

Urticaria in children

Urticaria in children often develops in association with viral infections. Certain foods, medications, or insect bites can also trigger it.

In children, it is important to monitor not only the rash but also their general condition. If swelling of the lips or tongue, difficulty breathing, severe weakness, or dizziness occurs, urgent medical attention is necessary.

If episodes recur, it is advisable to consult a pediatrician. This specialty is available at ZDRAVO.

Urticaria in adults

Urticaria in adults may be associated with food, medications, infections, insect bites, or physical factors.

In some people, the rash is triggered by cold, heat, sunlight, pressure on the skin, or physical activity. If symptoms recur regularly over an extended period, a doctor may consider a chronic form of the condition.

What causes urticaria?

Urticaria can have various causes. The most common triggers include:

• food;

• medications;

• viral and other infections;

• insect bites;

• cold or heat;

• exposure to sunlight;

• physical activity;

• pressure or friction on the skin;

• emotional stress;

• autoimmune processes.

   

Allergic urticaria is only one possible type. Therefore, the appearance of hives does not necessarily mean that a specific food or another allergen is responsible.

If the rash keeps recurring or its cause remains unclear, a doctor may recommend further evaluation. If necessary, you can consult specialists in Allergology.

Acute and chronic urticaria

Urticaria is classified into acute and chronic forms based on its duration.

An acute episode may be associated with a temporary trigger and may not recur once that trigger is eliminated. In chronic cases, identifying the exact cause is often more difficult, so a doctor may recommend additional tests.

What should you do if you develop urticaria?

The appropriate approach depends on the severity of symptoms, the person’s age, and the cause of the reaction. If the rash appears for the first time, it is advisable to consider what happened before its onset.

Until you consult a doctor, you can:

• avoid overheating your skin;

• avoid hot baths or showers;

• refrain from scratching the affected areas;

• avoid using new cosmetic products;

• temporarily avoid any obvious triggers;

• make a note of the foods and medications consumed before the rash appeared.

   

Treatment for urticaria may include antihistamines, but the specific medication and dosage depend on the individual situation. Particular care is needed when treating children — adult dosages should never be used without medical advice.

If necessary, your doctor may prescribe laboratory tests.

When does urticaria require emergency medical attention?

In most cases, skin symptoms do not pose an immediate threat. However, urticaria may be accompanied by angioedema or occur as part of an anaphylactic reaction.

Seek emergency medical attention immediately if the rash is accompanied by:

• swelling of the tongue or throat;

• difficulty breathing or noisy breathing;

• hoarseness;

• a feeling of tightness in the throat;

• sudden severe weakness;

• significant dizziness;

• loss of consciousness;

• a sudden deterioration in general condition.

In these situations, do not wait for the rash to disappear on its own. Seek emergency medical assistance immediately.

How can recurrent episodes be prevented?

Prevention depends on the cause of urticaria. If a specific trigger has been identified, it is advisable to avoid it.

If episodes recur, it can be helpful to keep a record of:

• the date and time the rash appeared;

• foods consumed;

• medications taken;

• physical activity;

• exposure to cold, heat, or sunlight;

• other unusual factors preceding the reaction.

   

These notes can help the doctor identify possible connections between symptoms and specific triggers.

If the rash keeps recurring or does not disappear for an extended period, it is advisable to consult a dermatologist.

Conclusion

Urticaria in children and adults has characteristic manifestations, including itchy hives, redness, and sometimes swelling. However, its causes can vary, ranging from infections and food to medications, physical factors, or autoimmune processes.

It is important to consider how long the rash lasts, possible triggers, and accompanying symptoms. Recurrent or persistent symptoms require medical consultation. Swelling of the tongue or throat, breathing difficulties, sudden severe weakness, or loss of consciousness require emergency medical attention.