Allergic diseases at an early age

In recent years, there has been a sharp increase in the incidence of allergic diseases, mainly in countries with a high level of development. Particularly noted is the increase in the prevalence of in young children, among which cutaneous and gastrointestinal manifestations of allergy are the most common. These include atopic dermatitis, urticaria, gastrointestinal manifestations associated in most cases with food allergy, as well as contact allergic dermatitis, and insect allergy. The leading mechanism of development is immunoglobulin E (IgE)-mediated reactions. There are three main factors that predispose to genetic, direct contact with an allergen, and external environmental factors. The article deals with the causes, manifestations, therapy and diagnosis of a number of allergic diseases: urticaria, allergic contact dermatitis, insect allergy and some methods of therapy.