One of the most well-studied IEIs associated with the JAK-STAT pathway is autosomal dominant hyper-IgE syndrome (AD-HIES)/STAT3 deficiency, characterized by eczema, eosinophilia, elevated IgE levels, mucocutaneous candidiasis, and connective tissue abnormalities (58–60). Here, IGHE is linked to Eczematoid dermatitis.