If the child gets used to suck a finger and you bethink only in some weeks or months, he most likely will refuse a baby's dummy.
He gets used to pleasant feeling which the sosaniye causes both in a mouth, and in a finger.
Therefore if you decided to use a pacifier, give it in the first weeks of life.
In what time of day to give a baby's dummy?
It is logical to give it when the child looks for a mouth and tries to suck fingers, clothes and everything that can get.
In the first months the child is awake only before feeding..