My LO is developing a rash which I think is due to moisture sensitivity. It's mostly on his groin are, none on his actual booty. We mostly use prefolds and covers. I've started doing some naked time for him during the day and that makes it look a whole lot better until he has a poopy or really wet diaper and then it's red and rashy again. He gets changed every 2-3 hours. I was thinking of getting some microfleece liners. Have you noticed that they really make a difference for moisture sensitivity? I know I can DIY it very easily, but it's a lot easier for me to buy them right now so I'm thinking of getting some of the Bummis brand liners.
Re: Microfleece liners
Also, Grandma El's for a diaper cream. A little bit goes a long way.
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