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Food Allergy

Oral Allergy Syndrome

Learn about oral allergy syndrome at Allergy Center. Expert evaluation, advanced testing, and personalized treatment plans. Schedule your consultation today.

Oralfoodpollencross-reactivity

Overview

Oral allergy syndrome (pollen-food syndrome) causes itching or swelling of the mouth, lips, or throat when eating raw fruits or vegetables that cross-react with pollen allergens.

symptoms

  • Itching or tingling of lips, tongue, or throat
  • Mild swelling of mouth or throat
  • Symptoms usually limited to mouth area
  • Often worse during pollen season

triggers

  • Raw fruits (e.g., apple, peach, melon)
  • Raw vegetables (e.g., celery, carrot)
  • Certain tree nuts
  • Associated with birch, ragweed, or grass pollen allergy

testing

  • Skin or blood testing for pollen and related foods
  • Oral challenge when needed to confirm

treatment

avoidance

  • Peel or cook fruits and vegetables to reduce reaction
  • Avoid raw cross-reactive foods if symptomatic

medications

  • Antihistamines may reduce symptoms
  • Treat underlying pollen allergy

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