Zinc Oxide Ointment preparations including Calmoseptine Ointment and Desitin Maximum Strength 40% Diaper Rash Paste have been used to treat diaper dermatitis for many years around the world. There are no known reported hypersensitivities to either product and no reported serious adverse events. As the proposed study is in neonates and infants, as a precaution the evidence relating to the safety and toxicity of individual ingredients were reviewed for the trial protocol prior to commencement.