Remedies for Eczema in Babies, Toddlers, and Children

My son had severe eczema, as I posted on here it has improved 80-90% since removing fluoride from our water with a filter. Anyway he still has small flareups in the winter months so we tried the ACV. He is 12 and does not like drinking it so he applies it topically. He said it doesn't work that well and it burns like crazy, we are cutting it with water 50/50. I have used ACV as a toner on my skin and I have to say it does burn and I don't even have eczema. Tried it with my 2 year old Daughter same thing. She was screaming so much, I switched gears and just use coconut oil after bathing. For Adults this is a good remedy but for children, not so much in my opinion.