Mixed IgE and non-IgE-mediated FAs include eosinophilic gastrointestinal disorders (EGIDs), such as eosinophilic esophagitis (EoE), cow’s and soja’s milk protein allergy (CMPA and SMPA, respectively) and atopic dermatitis [23]. This evidence concerns the gene IGHE and eosinophilic esophagitis.