J.B.
Soy is not good for babies. Please try a different formula for your baby and get the book "The Unhealthy Truth". It is written by a mom who did a great deal of research/investigation for all of us. Some information is also covered on the website allergykids.com. The yeast rash is a sign of yeast overgrowth in the intestines - a lack of good bacteria. All moms need this information now days, as food allergies are becoming more common than not. Arm yourself with this information.