Urticaria patient overview

Overview

Urticaria, also called hives, is a skin condition that causes raised, red or skin-colored welts that are very itchy. These welts can appear suddenly anywhere on the body and usually go away within 24 hours, though new ones may form.

Yes, urticaria is very common. About 1 in 5 people will have hives at some point in their lives.

Anyone can get hives, but they are more common in adults, especially women. People with a history of allergies, asthma, or eczema are more likely to develop hives.

Symptoms

Common symptoms

• Raised, red or skin-colored bumps or welts on the skin
• Intense itching
• Welts that change shape and size, often merging together
• Welts that can appear anywhere on the body, including the face, arms, legs, and torso
• Welts that typically last a few hours to 24 hours, then fade away

Symptoms in children

• Children often get larger welts that can look like patches
• Itching may be more intense in children, sometimes causing scratching and skin irritation
• Welts on the face and limbs are common in young children

Symptoms in older adults

• Hives may be less itchy in older adults but can last longer
• Older adults may experience more widespread outbreaks
• Skin changes from hives can blend with other age-related skin changes

Causes

Main causes

• Allergic reactions: foods (especially nuts, eggs, shellfish), medicines (like antibiotics or pain relievers), insect stings, or latex
• Physical triggers: pressure on the skin, cold, heat, sun exposure, exercise, or water
• Infections: viral illnesses, such as colds, are a common cause in children
• Stress or emotional upset can trigger hives in some people
• Autoimmune conditions: sometimes the immune system attacks healthy skin cells

Risk factors

• Personal history of allergies, asthma, or eczema
• Family history of hives or allergic conditions
• Recent infection or illness
• Being female—women are more likely to get chronic hives
• Underlying autoimmune diseases like lupus or thyroid disease

When to see a doctor

See a doctor urgently if:

• If you have hives along with swelling of the face, mouth, or throat, or trouble breathing, call emergency services immediately.
• If hives are very severe, painful, or cover most of your body, see a doctor promptly.

Book a routine appointment if:

• If hives last longer than 48 hours without getting better
• If hives keep coming back for weeks or months
• If you are not sure what caused them and want to find out
• If over-the-counter treatments are not helping

Diagnosis

Your doctor will ask about your symptoms, when they started, and any possible triggers. They will look at your skin and may press on a welt to see if it fades temporarily.

Tests that may be done

• No specific test for hives; diagnosis is usually based on your history and physical exam
• If hives are chronic (long-lasting), your doctor may order blood tests to check for underlying conditions like autoimmune disorders or thyroid problems
• Allergy testing, such as skin prick tests, may be used if a specific trigger is suspected

What to expect at your appointment

Your doctor will likely ask detailed questions about your diet, medicines, stress, and activities. For most people, no extensive testing is needed. If your hives are chronic, the doctor may refer you to a skin specialist (dermatologist) or an allergy specialist.

Treatment

The main treatment for hives is to relieve itching and swelling. Most cases get better on their own. If treatment is needed, it usually involves medicines that block histamine, the chemical that causes hives. Your doctor can recommend the best approach for your situation.

Self-care at home

• Apply a cool, damp cloth or ice pack to the itchy areas for 10–15 minutes at a time
• Take cool or lukewarm baths with colloidal oatmeal or baking soda
• Wear loose, soft cotton clothing to avoid irritating the skin
• Avoid scratching—use a cold compress or anti-itch lotion instead
• Avoid known triggers, such as certain foods or extreme temperatures

Medical treatments

Doctors often prescribe or recommend antihistamine medicines that reduce itching and swelling. For severe hives, a short course of corticosteroids may be used. There are also other medicines that can help for chronic hives that do not respond to antihistamines. Always follow your doctor’s advice and do not take any medicine without consulting a healthcare provider.

When is surgery considered?

Surgery is not used to treat hives.

Living with this condition

Hives can be uncomfortable, but they usually do not cause serious problems. Keep a diary of when hives appear and what you were doing or eating to help identify triggers. Having an action plan with your doctor can help you manage outbreaks quickly.

Lifestyle tips

• Manage stress through relaxation techniques like deep breathing or meditation
• Avoid overheating: stay in cool environments, take cool showers
• Choose fragrance-free soaps and detergents to avoid irritation
• Carry emergency medicine (like an antihistamine) if you have had severe reactions in the past

Diet and exercise

If certain foods trigger your hives, avoid them. Some people get hives after exercise, so if that happens, slow down and stop if welts appear. Keep a food and activity diary to spot patterns.

Mental health and emotional wellbeing

Living with chronic hives can be frustrating and stressful, especially if you cannot find the cause. Itching and appearance changes can affect sleep, mood, and self-esteem. Talk to your doctor if you feel anxious or down—they can offer support or refer you to a counselor.

Prevention

Hives cannot always be prevented, but you can reduce the chance of outbreaks by avoiding known triggers. If you have allergies, avoid those allergens. Managing stress and staying cool can also help. For some people, hives happen for no known reason despite all precautions.

Complications

If left untreated

• Chronic hives can cause persistent itching and discomfort that affects sleep and daily activities
• Severe allergic reactions (anaphylaxis) can be life-threatening if not treated promptly—this is rare with hives alone
• Scratching can lead to skin infections

Long-term outlook

Most hives go away within a day or two and do not cause any long-term problems. For chronic hives, treatment is very effective, and many people see improvement within months. With the right care, you can manage hives and maintain a good quality of life.

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