The term "allergy" was first used by the Austrian doctor and pediatrician Clemens von Pirquet at the beginning of the 20th century, i.e. in 1906. The term allergy comes from two Greek words, allos (changed) and ergon (reactivity). In some literature, it is also mentioned in the version allon ergo, which means I react differently. In clinical medicine, immediate hypersensitivity reactions and late phase reactions are collectively called allergy or atopy. The diseases associated with them are called allergic, atopic or immediate hypersensitivity diseases. If the reactions of these attacks are repeated, they lead to the development of chronic allergic diseases in which tissue is damaged and reshaped. Allergens are antigens that cause immediate sensitivity reactions, which are proteins or chemical substances related to proteins. Allergens cause an allergic reaction. They are all around us and we are exposed to some of them all year, and some only for a certain part of the year. We divide allergens into inhaled, digestive, contact and injected, and enter our body in various ways. Allergic diseases are defined as noninfectious chronic diseases. They significantly affect the ability to work, but also the quality of life from an early age to old age. Allergic diseases can be divided into allergic diseases of the respiratory system (allergic rhinitis, allergic conjunctivitis, asthma), allergic skin diseases (urticaria, angioedema, atopic dermatitis), other allergic diseases (food allergy, allergy to stings and insect bites, allergy to medicines and vaccines) and anaphylaxis. The most common allergic disease depends on the age of the person. Thus, in early infancy, gastrointestinal allergies with hypersensitivity to eggs, milk or some other food allergens are common. Then, at the age of three to four months and up to one year of age, the most common is allergic dermatitis, which is manifested by redness, itching and roughness of the skin (cheeks, behind the ears, bends of the elbows, knees, hands and feet). Asthma most often appears between the ages of two and three. Allergic rhinitis is the most common in puberty. Allergic diseases in childhood affect boys more often, while women are more susceptible in adulthood. An allergic reaction is a response of the immune system that damages the body and creates unnecessary and unwanted symptoms. There are four types of allergic reactions. Diagnosing allergies begins with personal and family history, followed by diagnostic procedures, i.e. tests, which include skin tests (prick, scratch, patch, intradermal tests), blood tests (RIST, RAST, eosinophilia) and provocation tests. Allergies are not curable, so in the case of allergic diseases, prevention is necessary, which is divided into primary, secondary and tertiary. Treatment of allergies includes: avoiding allergens if possible, medication, specific immunotherapy and education. The role of allergy educators is in the prevention, education and treatment of allergic diseases. Procedures for providing helpin case of allergic reactions are also important. Several questions were answered through the research, such as the prevalence of allergic diseases in kindergarten groups and whether these children are aware of their allergies, and whether the educators themselves are sufficiently familiar with allergic diseases and their roles in "allergic" children. In addition, the goal of the research was to confirm (or reject) the set hypotheses.