Urticaria (Hives) Treatment in Delhi, India

Urticaria is a common dermatological condition in which small, itchy swellings or rashes, known as wheals, appear on the skin. These patches can vary in size and shape, often merging to form larger areas of irritation. They usually appear suddenly and may fade within a few hours, though new ones can continue to develop elsewhere on the body.

Urticaria may be acute, lasting less than six weeks, or chronic, when symptoms persist for longer periods or recur frequently. In some cases, it may occur together with angioedema, deeper swelling that affects the eyelids, lips, hands, or other soft tissues. While mild cases often resolve without treatment, recurrent or severe episodes require medical evaluation to identify triggers and ensure appropriate management.

Urticaria occurs when the immune system releases histamine and other inflammatory chemicals from specialised skin cells called mast cells. This reaction causes small blood vessels in the skin to leak fluid, resulting in raised, itchy welts. The causes of urticaria vary widely, in some individuals, the trigger is clear and immediate, while in others it remains uncertain despite thorough evaluation. Common causes include:

Allergic Reactions

Allergic urticaria occurs when the immune system reacts abnormally to a harmless substance. Common allergens include certain foods (such as shellfish, nuts, eggs, and dairy), insect stings or bites, medications (like antibiotics, aspirin, or painkillers), and latex. Upon exposure, the body releases histamine, leading to sudden itching, redness, and swelling.

Infections

Acute urticaria often appears during or after an infection, especially in children. Viral infections (such as colds, hepatitis, or mononucleosis), bacterial infections (such as urinary tract or sinus infections), or even parasitic infestations can trigger an immune response that leads to hives.

Physical Triggers

Certain physical stimuli can directly irritate or stimulate the skin, leading to specific types of urticaria, collectively known as physical urticarias. Examples include:

• Dermographism: hives appearing after scratching or pressure on the skin.
• Cold urticaria: exposure to cold air, water, or objects.
• Heat or solar urticaria: response to warmth or sunlight.
• Cholinergic urticaria: triggered by exercise, fever, or emotional stress.
  These forms usually resolve once the trigger is removed but may persist in sensitive individuals.

Autoimmune Causes

In some chronic cases, the immune system mistakenly targets the body’s own tissues, stimulating mast cells without any external allergen. This is known as autoimmune urticaria, and it is often associated with other autoimmune conditions, such as thyroid disorders or lupus.

Stress and Emotional Factors

While stress itself does not cause urticaria, emotional strain and anxiety can intensify immune or hormonal responses, leading to flare-ups or worsening of existing symptoms.

Idiopathic Causes

In a significant number of cases, no specific cause can be identified despite detailed testing. This form is referred to as chronic idiopathic urticaria, where symptoms persist for months or years without a known trigger. Care focuses on symptom control and improving quality of life through long-term management strategies.

Although urticaria can affect anyone, certain factors increase the likelihood of developing the condition or experiencing recurrent episodes. These influences often interact with underlying immune sensitivity, making some individuals more prone to flare-ups.

History of Allergies or Asthma

Individuals with allergic conditions such as hay fever, eczema, or asthma have a more reactive immune system, which can predispose them to urticaria.

Family History and Genetic Factors

A family history of urticaria, allergies, or autoimmune diseases may increase susceptibility, suggesting a genetic component in immune response regulation.

Recent or Chronic Infections

Infections, whether viral, bacterial, or parasitic, can trigger temporary immune changes that result in hives. Chronic or recurring infections, such as sinusitis or dental infections, may contribute to persistent urticaria.

Medication Use

Certain medications, including non-steroidal anti-inflammatory drugs (NSAIDs), antibiotics, and blood pressure medicines such as ACE inhibitors, can provoke urticarial reactions in sensitive individuals.

Hormonal Fluctuations

Changes in hormone levels during menstruation, pregnancy, or menopause may influence immune function and skin sensitivity, sometimes contributing to symptom flare-ups.

Autoimmune or Thyroid Disorders

People with autoimmune conditions, particularly autoimmune thyroid disease, have a higher risk of chronic urticaria due to abnormal immune activation.

Emotional and Physical Stress

High stress levels can disrupt immune balance and worsen pre-existing urticaria. Physical fatigue, sleep deprivation, or sudden temperature changes may also contribute to flare-ups.

Environmental and Lifestyle Factors

Exposure to pollution, harsh weather, chemical irritants, or allergens in the environment can increase skin sensitivity and trigger episodes in susceptible individuals.

The most recognisable feature of urticaria is the sudden appearance of raised, itchy welts or wheals on the skin. These lesions can appear anywhere on the body, often developing rapidly and disappearing within a few hours, only to reappear elsewhere. The severity and duration of symptoms vary from person to person and depend on the type and underlying cause of urticaria.

Common Symptoms

• Raised, red, or skin-coloured bumps: Wheals may range from a few millimetres to several centimetres in diameter and can merge to form larger patches.
• Intense itching, burning, or stinging sensation: This is often worse at night or after exposure to heat, pressure, or certain triggers.
• Swelling of deeper tissues (angioedema): In some cases, swelling affects areas such as the lips, eyelids, tongue, hands, or feet, often accompanied by a tight or tingling feeling.
• Transient marks: Each individual welt usually fades within 24 hours, but new ones may appear in different areas, giving the impression of a migrating rash.
• Recurring episodes: In chronic urticaria, outbreaks may occur daily or intermittently for several weeks or months, sometimes without a clear trigger.

Severe Symptoms Requiring Urgent Attention

Although rare, severe allergic reactions can occur when urticaria is part of a systemic allergic response. Warning signs include difficulty breathing, dizziness, swelling of the throat or tongue, and a sudden drop in blood pressure. These symptoms may indicate anaphylaxis, a medical emergency that requires immediate care.

Hives can be triggered by a wide range of factors, from allergies and infections to autoimmune activity. A thorough evaluation helps distinguish between acute and chronic forms and guides targeted management. At Max Hospitals, diagnosis begins with a detailed clinical examination and medical history, followed by laboratory and allergy tests when required. This comprehensive approach enables our dermatologists, allergists, and immunologists to pinpoint potential triggers and rule out underlying systemic conditions.

Physical Examination and Medical History

The process usually starts with a physical examination of the skin to assess the appearance, size, and pattern of wheals, as well as the presence of angioedema or any associated symptoms.
Our doctors also review the patient’s medical history which includes inquiring about:

• Recent illnesses or infections
• Any new foods, medications, or supplements introduced
• Exposure to environmental or occupational triggers
• History of allergic conditions, autoimmune disorders, or thyroid problems
• Frequency, duration, and timing of flare-ups

This step often provides valuable clues about the likely cause and helps the team decide if further testing is needed.

Allergy Testing

When an allergic trigger is suspected, specific allergy tests may be recommended. These include:

• Skin prick tests: A small amount of suspected allergen is placed on the skin, and the reaction is observed.
• Blood tests (such as specific IgE testing): Used to detect antibodies that indicate an allergic response to particular substances like food, dust, pollen, or medication.

Laboratory Investigations

Blood and urine tests may be advised to identify infection, inflammation, or autoimmune activity that could contribute to chronic urticaria. Common investigations include:

• Complete blood count (CBC): Helps identify infection or inflammation.
• Erythrocyte sedimentation rate (ESR) or C-reactive protein (CRP): Indicates the presence of inflammation in the body.
• Liver and kidney function tests: Used to rule out underlying organ-related causes.
• Thyroid function tests: Particularly relevant since autoimmune thyroid disease is often linked to chronic urticaria.
• Autoimmune screening: Tests such as ANA (antinuclear antibody) may be suggested if an autoimmune cause is suspected.

Physical Trigger Tests

For patients experiencing physical urticaria, diagnostic exposure tests may be performed under controlled conditions to confirm the specific trigger. Examples include:

• Cold stimulation test: For suspected cold urticaria.
• Heat or exercise challenge test: For cholinergic or heat-induced urticaria.
• Pressure test: To confirm delayed pressure urticaria.

These tests help identify whether physical factors such as temperature or friction contribute to symptom flare-ups.

Exclusion of Other Skin Conditions

In some cases, doctors may perform additional assessments to exclude conditions that mimic urticaria, such as drug eruptions, vasculitis, or contact dermatitis. Skin biopsy is rarely required but may be performed if lesions persist longer than 24 hours or have unusual characteristics.

At Max Hospitals, the diagnostic process for urticaria is guided by a multidisciplinary team. Our dermatologists work closely with allergists and immunologists to correlate clinical findings with test results, ensuring a precise diagnosis and a tailored treatment plan. This integrated approach not only identifies triggers but also helps manage complex or chronic forms effectively, aiming for lasting relief and improved quality of life.

Treatment at Max Hospitals focuses on controlling symptoms, identifying triggers, and preventing recurrence. Each treatment plan is tailored to the patient’s condition and severity.

Lifestyle and Trigger Management

The first step is identifying and avoiding known triggers. Our allergists provide detailed guidance on food, medications, or environmental factors that may worsen symptoms. Stress management and maintaining a regular sleep pattern can also help reduce flare-ups.

Medications

• Antihistamines: The mainstay of treatment, these block the effects of histamine and help relieve itching and swelling.
• Corticosteroids: Short courses may be used for severe or resistant cases.
• Immunomodulatory agents: For chronic or autoimmune urticaria, drugs such as omalizumab or cyclosporine may be recommended under close supervision.
• Topical soothing lotions: These may provide temporary relief for itching and irritation.

Advanced Therapies

At Max Hospitals, complex or chronic cases are managed through a multidisciplinary approach involving dermatologists, allergists, and immunologists. Advanced treatments are introduced only after thorough evaluation to ensure both safety and efficacy.

While urticaria itself is usually benign, chronic or severe cases may lead to complications such as:

• Persistent discomfort and sleep disturbances due to itching
• Emotional distress and anxiety, especially with chronic hives
• Angioedema, causing swelling of the face, lips, or throat, which may occasionally be life-threatening
• Secondary skin infections from frequent scratching
• Impact on daily activities, especially when symptoms are unpredictable

Early diagnosis and appropriate management can significantly reduce the risk of such complications.

While not all forms of urticaria can be prevented, several measures can help reduce the frequency and severity of outbreaks:

• Identify and avoid known triggers such as specific foods, medications, or environmental factors.
• Maintain a healthy lifestyle with balanced nutrition and adequate hydration.
• Manage stress through relaxation techniques, meditation, or counselling if needed.
• Avoid extreme temperature changes or tight clothing that may irritate the skin.
• Schedule regular follow-ups with a dermatologist to monitor progress and adjust treatment when necessary.

Is urticaria contagious?

No, urticaria is not contagious and cannot spread from person to person.

How long does an episode of urticaria last?

Individual wheals often fade within 24 hours, but new ones can appear. Acute urticaria lasts less than six weeks, while chronic urticaria persists longer.

Can stress cause urticaria?

Stress does not directly cause urticaria but can trigger or worsen flare-ups in susceptible individuals.

Is urticaria related to food allergies?

In some cases, specific foods such as nuts, seafood, or eggs can trigger hives, especially in acute allergic urticaria.

Can urticaria become life-threatening?

Most cases are mild, but severe allergic reactions with throat swelling or breathing difficulty require immediate medical attention.

Does urticaria affect internal organs?

Generally, urticaria affects only the skin, but chronic or autoimmune forms may sometimes be linked with systemic conditions requiring further evaluation.

Can urticaria go away permanently?

Acute urticaria often resolves completely once the trigger is removed. Chronic urticaria may persist for months or years but can be effectively controlled with ongoing care.

How quickly can urticaria be cured?

The duration of urticaria depends on its cause. Acute episodes often resolve within a few days once the trigger is removed and antihistamines are started. Chronic urticaria may take longer to control, as it often requires identifying underlying causes and adjusting treatment over time. While there is no instant cure, appropriate medication and lifestyle management can provide rapid relief from itching and discomfort.

Can hives leave marks or bruising?

In most cases, hives fade without leaving any marks. However, if the welts are scratched excessively or last for more than 24 hours, they may cause mild discolouration or bruising. Persistent bruised-looking patches could indicate a different skin condition, such as urticarial vasculitis, and should be evaluated by a dermatologist.

Can liver problems cause hives?

Liver disorders are not a common cause of urticaria, but in some cases, impaired liver function may contribute to increased histamine levels in the blood, which can trigger or worsen itching and rashes. If liver disease is suspected, liver function tests are performed to rule out an association.

Is urticaria caused by a blood infection?

No, urticaria is not a blood infection. It is an allergic or inflammatory skin reaction resulting from the release of histamine and other chemicals by immune cells. However, infections in other parts of the body, such as viral or bacterial illnesses, can sometimes act as triggers for acute hives.

What blood tests are done to diagnose urticaria?

Doctors may recommend specific blood tests to identify possible causes or related conditions. These may include a complete blood count (CBC), ESR or CRP (to check for inflammation), thyroid function tests, liver and kidney function tests, and autoimmune markers such as ANA. In some cases, allergy-specific IgE tests may also be used to detect allergic triggers.

Can vitamin or mineral deficiencies cause urticaria?

Certain nutrient deficiencies, such as vitamin D, vitamin B12, or iron deficiency, have been linked with chronic urticaria in some studies. While deficiencies may not directly cause hives, correcting them can sometimes help reduce symptom severity and improve overall skin health.

Does vitamin D help with hives?

Some research suggests that maintaining adequate vitamin D levels may help reduce the frequency and intensity of chronic urticaria episodes, especially in individuals with low baseline levels. However, vitamin D should be taken only under medical supervision as part of a broader treatment plan, not as a standalone remedy.

What bacterial infections are associated with hives?

Certain bacterial infections, such as sinus infections, urinary tract infections, and dental infections, can occasionally trigger or worsen hives. Once the infection is treated, the urticaria often improves. Identifying and managing the underlying infection is therefore an important part of treatment in such cases.

Can urticaria be linked to cancer?

In most cases, urticaria is not related to cancer. However, very rarely, chronic or unexplained urticaria may occur as a reaction to an underlying systemic condition, including certain blood disorders or malignancies. Such cases are uncommon, and doctors typically perform additional investigations only if other concerning symptoms are present.

Reviewed by Dr. Kashish Kalra, Head of Dept and Consultant, Dermatology, on 18 February 2026.