Eosinophilic esophagitis (EoE) is a chronic, allergic inflammatory disease of the esophagus. The inflammation damages the esophagus, making it hard to eat and swallow. Children may complain of abdominal pain and vomit or refuse to eat. If the inflammation is severe, it may cause a narrowing of the esophagus and lead to an emergency because food can get stuck within the esophagus. EoE is a rare disease, with children often having additional food or environmental allergies. There is a potential inherited risk for this disease, although it usually appears to be caused by a large immune response to specific foods. Treatment can be diet modifications, specialized nutrition supplements, medications, or surgery.