the yeast is not the issue, the real issue is what allows the yeast to overgrow. Your body just isn't working properly and things like antifungals will provide only temporary relief. better diet, cleansing, exercise are all great. "genetics" may play a role, but, if you really want a better understanding of how, looking into the concept of a "miasm" as understood by homeopaths. with eczema its usually the psoric miasm or the tubercular miasm. not exactly the same as genetics, but more like predisposition. but, it can be cured. homeopathy has done wonders for me.