Cross-Reactivity with Food Allergies
Some individuals may experience cross-reactivity between seasonal allergies and certain food allergies. For example, individuals with birch pollen allergies may also react to certain fruits and vegetables, such as apples, cherries, and carrots, due to the proteins shared between the pollen and these foods. This phenomenon can lead to oral allergy syndrome, causing itching or swelling in the mouth, throat, or lips when consuming these foods during the spring allergy season.