Joseph A. DiConcetto, MD  
Patient Education

  • Oral Allergy Syndrome Oral allergy syndrome is an allergic reaction to food that involves itchiness, redness and swelling of the mouth after eating certain fruits, vegetables or nuts, The condition is a type of allergic cross-reaction, where the body reacts to one substance after mistaking it for another, The condition occurs as a result of the immune system being unable to distinguish between proteins in pollen (which cause allergies such as hay fever) and similar proteins in some foods.