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Medically Reviewed By

Dr. Srinivas

Consultant Pathologist

Pathology · Last reviewed: June 2026

IHC EBV-LMP immunohistochemistry test showing Epstein Barr virus latent membrane protein detection in tissue sample under microscope

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ALLERGY, GARLIC (LASOON)

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About this test

The Allergy, Garlic (Lasoon) Test is a specialized blood test that measures specific Immunoglobulin E (IgE) antibodies against proteins found in garlic (Allium sativum). This test helps identify allergic sensitization to garlic and supports the diagnosis of food allergy, spice allergy, and IgE-mediated hypersensitivity reactions.

Garlic, commonly known as Lasoon, is widely used in Indian and international cuisines as a flavoring ingredient in curries, sauces, pickles, soups, and processed foods. Although garlic is recognized for its health benefits, some individuals may develop allergic reactions after consuming garlic or through skin contact and inhalation during food preparation.

In susceptible individuals, the immune system mistakenly recognizes garlic proteins as harmful substances and produces specific IgE antibodies. Repeated exposure triggers histamine release and inflammatory responses, resulting in symptoms affecting the skin, digestive tract, respiratory system, and oral cavity.

Garlic allergy may occur alone or in association with sensitivity to other members of the Allium family, including onion, leek, and chives. The Garlic (Lasoon) Allergy Test helps healthcare providers identify garlic sensitization and supports personalized dietary recommendations and allergy management strategies.

Benefits of the Test

  • Detects garlic-specific IgE antibodies
  • Helps diagnose garlic and spice allergies
  • Supports evaluation of food hypersensitivity
  • Assists in identifying dietary triggers
  • Helps prevent allergic reactions
  • Requires only a blood sample
  • Supports personalized allergy management

Why Doctors Recommend This Test

Doctors may recommend this test for:

  • Mouth or throat itching after consuming garlic
  • Hives or skin rash following meals
  • Swelling of lips, tongue, or face
  • Abdominal pain, nausea, vomiting, or diarrhea
  • Wheezing or breathing difficulty
  • Suspected spice allergy
  • Recurrent unexplained allergic reactions

Preparation Before Test

Sample Required

  • Peripheral venous blood sample

Preparation Guidelines

  • No fasting is required
  • Antihistamines generally do not interfere with blood IgE testing
  • Inform your physician about previous food allergies and reactions
  • Follow laboratory instructions before sample collection

Reporting Time

Results are generally available within 3–7 working days, depending on laboratory methodology.

Who Should Take This Test?

  • Individuals experiencing symptoms after consuming garlic
  • Patients with suspected spice allergies
  • Children and adults with food-related allergic reactions
  • Individuals with unexplained hypersensitivity reactions
  • Patients undergoing food allergy evaluation

Clinical Significance

Elevated garlic-specific IgE levels may indicate:

  • Garlic Allergy
  • Spice Allergy
  • Food Hypersensitivity
  • Allium Allergy
  • IgE-Mediated Food Allergy

Common symptoms may include:

  • Mouth or throat itching
  • Hives and skin rash
  • Swelling of lips, tongue, or face
  • Abdominal pain
  • Nausea and vomiting
  • Diarrhea
  • Coughing
  • Wheezing
  • Shortness of breath
  • Severe allergic reactions including anaphylaxis

The presence of garlic-specific IgE antibodies indicates sensitization and should always be interpreted together with clinical symptoms and dietary history.

Test FAQs

What is the Allergy, Garlic (Lasoon) Test?

It is a blood test that measures specific IgE antibodies against garlic proteins to diagnose garlic allergy.

What sample is required?

A peripheral venous blood sample is required.

Is fasting required before the test?

No. Fasting is generally not necessary.

What symptoms suggest garlic allergy?

Symptoms include itching, hives, swelling, abdominal pain, wheezing, and breathing difficulty after consuming garlic.

Can garlic allergy cause skin reactions?

Yes. Garlic allergy may cause hives, itching, eczema, or contact dermatitis.

Can garlic allergy be associated with onion allergy?

Yes. Cross-reactivity with other Allium vegetables such as onions, leeks, and chives may occur.

Can garlic allergy cause severe reactions?

Yes. Severe allergic reactions including anaphylaxis may occur in highly sensitive individuals.

Can antihistamines affect the test results?

No. Antihistamines generally do not interfere with blood IgE testing.

Does a positive result confirm allergy?

A positive result indicates sensitization and should be interpreted together with symptoms and dietary history.

Who interprets the test results?

An allergist, immunologist, pediatrician, or physician interprets the results.

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