Cross-allergy

Why does a person sensitive to the pollen of some trees suddenly feel ill when they eat a fruit salad? The reason for this is cross-allergy. It does not manifest itself immediately, you can have a product all your life, and only once your body will fail and react to it with a special reaction. The reason lies in the fact that the chemical formula of certain substances, similar in structure to the allergen, is perceived by our immunity as potentially dangerous. And in some cases, an allergy develops - for insurance, so to speak.

Allergy to birch - cross allergens

More often than others, allergic reactions suffer from people reacting to pollen . Moreover, in this case the reaction is usually not on the pollen of trees and flowers of a different kind, but on food. Basically - fruits and vegetables in raw form. If your allergen is alder, a cross-allergy can occur on apples, pears, tomatoes, kiwi, celery. The same set of products can trigger a reaction in those who are sensitive to birch pollen. Here is a short list of the most common examples of cross-allergy:

Reaction to medicines

If your allergen is wheat, cross-allergy may manifest itself in intolerance to indoor dust, or yeast, but is most often expressed in reactions to medications. This is the so-called cross- allergy to antibiotics - mold-containing and yeast-containing drugs. Also, people with this kind of allergy often develop hypersensitivity to cosmetic products and household chemicals.