too much strains is not good.at most 3 strains.for kids, I recommend single strain of bacteria.
yes, exzema is thrush, which is taboo for Europe and North america, is cause by the way of living, and western medicine, which aimed onkilling bacterias, while acient medicne aimed on killing microbes. try ND.US has the best natrue meds, chinese prescription combined with Western remedies, and high technology.