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Onion
Onions (Allium cepa) contain thiols and profilin (All c 3), triggering oral allergy syndrome (OAS) or contact dermatitis, especially in birch pollen-allergic individuals. Rarely causes anaphylaxis. Cross-reacts with garlic, leeks, and mugwort pollen.
Allergen
Specification & Key Parameters
IŻŻ • EFSA
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Onion |
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Symptoms
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Skin Rash or Hives
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Itching or swelling of the lips, face, or throat
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Digestive issues (nausea, vomiting, diarrhea)
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Shortness of breath or wheezing
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Anaphylaxis (Severe Allergic Reaction)
Healing & Prevention
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Avoidance of onions and onion-containing products
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Antihistamines
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Epinephrine (for severe reactions)
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Consultation with an allergist
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Reading food labels carefully
