Nutrition
Food Allergy Oral Allergy Syndrome
Food allergy oral allergy syndrome causes itchy mouth from raw apple or birch pollen cross-reactive fruits—cooked forms often tolerate; differs from full anaphylaxis nut allergy.
Food allergy oral allergy syndrome causes itchy mouth from raw apple or birch pollen cross-reactive fruits—cooked forms often tolerate; differs from full anaphylaxis nut allergy. Seasonal pollen worsens symptoms.
Peel sometimes helps. Clinician distinguishes OAS from IgE systemic risk.
Carry epinephrine only if prescribed.
Common questions
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What is oral allergy syndrome?
Pollen-cross reactive raw fruits can itch the mouth while cooked forms often tolerate. Clinician assessment separates OAS from systemic IgE allergy.
Related terms
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