Hello!
Please don’t worry about the questions, it is what I am here for !
Eczema cases are often tough. There is often mold exposure, both food and seasonal allergies, etc. Typically there is significant Th2 dominance in those with eczema also. When the person is Th2 dominant, the Th1 response will be diminished. When the Th1 response is diminished, viral and bacterial burdens will be increased. Down-regulating the Th2 dominance ( using perilla seed extract, astragalus, NAC, quercetin) will be essential. Increasing Th1 response (using combinations of berberine, baicalin, sulforaphane, ginger, etc.) will also be essential.
As far as testing goes, like I said there could be many triggers (mold, yeast, parasites, allergies, stress, pollution, etc). Before you even run tests, start by cutting out all gluten, dairy sugar, nightshades and yeast/peanut foods as well as legumes (lectins). If this does not resolve the issue, you might want to look at gluten cross reactors.
I would do IgE (ELISA tests are good) testing for timothy grass, bermuda grass, birch, ragweed, latex, and mugwort. For those that are abnormal, I would test the foods that are cross-reactors. You may need to avoid those foods. That will give you a window on whether there’s an environmental / food cross process driving up IgE.
You also want to address the gut. Mold exposure may change underlying T cell polarization in a way that requires attention (working with a practitioner and suing the supplements mentioned above to switch Tcell polarization).