Oral Allergy Syndrome (OAS), also known as pollen-food syndrome, is caused by cross-reacting allergens found in both pollen and raw fruits, vegetables, or some tree nuts. The immune system recognizes the pollen and similar proteins in the food and directs an allergic response to it. OAS is a form of a contact allergic reaction that occurs upon contact of the mouth and throat with raw fruits or vegetables. The most frequent symptoms of OAS include itchiness or swelling of the mouth, face, lip, tongue and throat.
Related Journals of Bronchitis
Journal of Allergy and Inflammation, Immunochemistry and Immunopathology, Infectious Diseases and Diagnosis, Mucosal Immunology, Innate Immunity and Immunological Disorders , International Journal of Inflammation.