Caldesene Baby Powder with Corn Starch & Zinc Oxide | 5 oz. | Helps Treat & Prevent Diaper Rash Clean your babys bottom between diaper changes with plain warm water, avoiding scented wipes and soaps. Let your babys skin dry before putting on another diaper or let their bottom air dry. Protect your babys skin with Caldesene Baby, which is safe to apply after each diaper change.