Also helpful, are ALLERGISTS/IMMUNOLOGISTS. To learn more about EGID (diagnosis and treatments, including diet changes), including EGE (Eosinophilic GastroEnteritis), a severe and painful inflammation of stomach &/or intestines, and EE (Eosinophilic Esophagitis), etc., see these links, from a good website, about EGID. http://www.apfed.org/