Pollen, Fruits, Veggies Help Trigger Oral Allergy Syndrome - Health Day

Up to one-third of people with seasonal allergies may suffer oral allergy syndrome (OAS), which results from a cross-reactivity between seasonal airborne pollen proteins from weeds, grass and trees and similar proteins in some fresh fruits and vegetables.

Common symptoms of OAS -- also known as pollen-food syndrome -- include: itchiness, tingling or swelling of the mouth, tongue and throat immediately after eating fresh fruits, vegetables and certain kinds of other foods, according to the American Academy of Allergy, Asthma & Immunology