Garlic allergy

Garlic cloves and a garlic press

A garlic allergy is an allergic reaction to garlic, a common ingredient in many cuisines around the world. This type of allergy is relatively rare compared to other food allergies, but it can cause significant discomfort and health issues for those affected.

Symptoms

The symptoms of a garlic allergy can vary from mild to severe and may include:

• Hives or urticaria
• Itching or pruritus
• Swelling of the lips, face, tongue, or throat
• Abdominal pain
• Nausea and vomiting
• Diarrhea
• Anaphylaxis, a severe, potentially life-threatening reaction

Diagnosis

Diagnosing a garlic allergy typically involves a combination of medical history, physical examination, and allergy testing. Skin prick tests and blood tests such as the RAST test or ImmunoCAP can help identify specific IgE antibodies to garlic.

Management

The primary management strategy for a garlic allergy is strict avoidance of garlic in all forms. This includes fresh garlic, garlic powder, and garlic extracts. Patients should read food labels carefully and be aware of cross-contamination risks in restaurants and food processing facilities.

Treatment

In the event of accidental exposure, treatment options may include:

• Antihistamines for mild reactions
• Epinephrine auto-injectors for severe reactions, such as anaphylaxis
• Corticosteroids to reduce inflammation

Prevention

Preventing a garlic allergy reaction involves:

• Educating oneself about foods that commonly contain garlic
• Communicating dietary restrictions clearly when dining out
• Carrying an epinephrine auto-injector if prescribed

Related pages

• Food allergy
• Anaphylaxis
• Allergen
• Immune system