Staphylococcus aureneus and Candida on my babys bottom!?

You might consider seeing a pediatrician and allowing them to use their knowledge to fix your baby's problems. Sometimes, "natural" cannot fix everything and medications are needed. Once the baby is well, you can go back to your natural lifestyle but you don't want this to become a systemic problem because you don't like the advice that was given. Your baby's health comes first, your wishes are secondary.