V.H.
if you are on city water the city could be pumping a little more chlorine into the water mix. I was told to add chlorine to my daughter's bath to possibly help with her escezma and the my son got in the bath with her too. His legs were bright red while her's were not. I have seperately tested them and if I add chlorine (even 1/4 cup to a large spa tub) my son has a reaction to it.