Use

Oral allergy syndrome (OAS), also known as pollen-food allergy syndrome, is a type of food allergy that causes localized reactions in the mouth and throat when certain fresh fruits and vegetables are consumed by affected individuals. People allergic to ragweed pollen often have allergies to watermelons, cantaloupes, honeydew melons, and bananas. OAS symptoms include itching of the lips, palate, tongue, and throat, which are confined to the mouth and throat region and usually resolve quickly. It is important to distinguish these symptoms from systemic and life-threatening allergic reactions that occur during anaphylaxis.