A pollen-type allergen is a protein that is produced by plants during the flowering period. It is a microscopic pollen grain consisting of a protein shell and hereditary information - the allergen itself. Released from a flowering plant into the air, pollen is carried by the wind. The allergenic properties of the pollen allergen have far-reaching consequences, since part of the flower pollen settles not only on the flowers themselves, but also on the skin, clothing, fur of pets, and spreads throughout the home. Pollen allergen is a common allergenic component of house dust. The allergenic potential of a pollen allergen is directly related to the content of a certain amount of proteins. Some plants are highly sensitive to pollen allergens to physical factors, while others can withstand the same or more aggressive environmental conditions. Since immunoglobulins G and E react to specific proteins in pollen grains of allergenic plants, cross-sensitivity may occur between pollen allergens and the corresponding plant proteins. This phenomenon is especially pronounced in the case of cereal plants - in many patients, allergic cereal pollen can be confused with hay fever. Scratching, eczema, eyelid hyperemia