This may have been said already but cloth diapers could be your saving grace. And cloth diapers are easy these days. We've been using them since week 2. No rashes. Ever. Just a little coconut oil on the bum and done. Cloth is good for developing hips, too.
Also, we switched to cloth at week 2 because of a horrible rash that wouldn't go away. I tried every cream i could buy at Target. What worked was a homemade concoction: coconut oil, shea butter, and bentonite clay. The open sores started healing within hours. In 3 days her bottom was healed completely. And it was safe to use with cloth diapers. She's had a perfect baby bottom since.
