Eosinophilic esophagitis is a chronic, Th2-mediated disease characterized by the presence of predominantly eosinophilic inflammation in the esophagus. The disease is mediated by an immune or antigenic pathophysiological background, and the definition of the disease requires the presence of clinical symptoms and histological elements of the disease. Over the past ten years, there has been an increase in the incidence and prevalence of EoE, where the prevalence of EoE varies, and in the general population is 0.2–4 / 1000 in asymptomatic patients, while in symptomatic patients it is 5–6%. The prevalence in the general population is considered to be 43 to 52/100000. Pathophysiologically, it is a polygenic disease in which certain cytokines (IL-4, IL-5, IL-13, IL-14 and TGF-β) play a key role by activating eotaxin-3 in the esophageal mucosa. Eotaxin-3 strongly attracts eosinophils into the esophageal mucosa, and thus activated eosinophils lead to the attraction of other inflammatory cells, the release of mediators and the onset of disease. The histological criterion for the diagnosis of EoE is the presence of more than 15 eosinophils present in the visual field of esophageal mucosal biopsies. Clinically, the disease can manifest itself by a spectrum of symptoms, from acute food impaction, dysphagia, epigastric pain and heartburn, and nonspecific symptoms such as incontinence or vomiting also occur in these patients. The basis of treatment of these patients is based on drug therapy, dietary recommendations and endoscopic dilatation. Thea im of these clinical recommendations is to present the pathway of diagnosis and therapy of eosinophilic esophagitis.