Natural yeast treatment for Newborn
Clean the area very thoroughly with a mild soap, like Bronner's Baby Mild, rinse very carefully so no soap get left behind, and let the baby go naked and completely air-dry. Once the skin is totally dry, apply plain yogurt. Be sure to use the good, organic stuff that has active cultures. Throw on a cloth diaper (wool covers are ok, but no plastic) and reapeat after every diaper change until the redness is gone.