Blueberry
Blueberries may trigger oral allergy syndrome (OAS) via Bet v 1-like proteins, especially in birch pollen-sensitive individuals. Symptoms are typically mild (oral itching/swelling) but can escalate.
Symptoms
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Hives
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Swelling
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Itching
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Digestive Issues
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Difficulty Breathing
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Anaphylaxis
Healing & Prevention
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Avoidance
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Antihistamines
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Epinephrine Auto-Injector
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Medical Consultation
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Emergency Plan
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Reading Labels