The presence of aeroallergens in food products: a potential risk for the patient with allergic rhinitis

Clinical entities of food allergy in allergic rhinitis patients due to IgE-sensitization to cross-reactive aeroallergen and food allergen components are well described, but less data are available regarding allergic reactions to foods containing aeroallergens, either due to food contamination, such as oral mite anaphylaxis, or due to their natural presence in the edible products, such as pollen grains in honey and bee products. There are some potential risks for allergic rhinitis subjects due to ingestion of food products containing domestic mite, insect, fungal and pollen allergens. The knowledge of these risks is useful for the allergists and ENT specialists, especially in the context of climate changes with warmer periods facilitating mite growth in flours, and of increase use of phytotherapy and apitherapy products containing pollen grains.