Dear mummies, How often do you apply the diaper cream for baby? Is it after each diaper change or once after shower?

I only apply if there is redness. When I was a childcare teacher, a colleague mentioned that applying even if the child doesn't need it will condition the skin such that it becomes dependent on the cream, hence resulting in worse diaper rash problems. I think it's more important to change the diaper regularly so that the child's skin is not in contact with a wet or poopy diaper for too long as that is what causes the rash.