Change ointment, why use it?

The diaper rash ointment prevents the appearance of irritations and creates a protective barrier between the baby's bottom and their diaper. It relieves the child if redness has already set in. 

Farme's tip: these creams are often thick and difficult to apply, choose one that smells good to make its use pleasant. Apply it with your index finger and then wipe it on the diaper, this will prevent you from getting it everywhere!

Also read:

Baby's bath, how to proceed?
Baby wipes, with caution?
Cleansing milk, is it moisturizing?