Treats and prevents diaper rash. Gerber has been caring for babies for over 70 years and now has developed a line of baby health and care products to help you keep your baby happy and healthy. Gerber Diaper Rash Lotion is the first diaper rash lotion that glides on clear. It forms an invisible barrier that seals out wetness and provides protection from diaper rash. And, it gently soothes irritated skin to help your baby feel better.