Thumb or Pacifier?
Babies need to suck, and sometimes feeding isnt enough to meet their sucking needs. Extra sucking on a finger, thumb, fist or pacifier is common and can help baby calm down when she is upset.
Sucking on thumbs or fingers is natural. In fact, some babies suck their thumbs even before they are born. Many parents worry about thumb sucking becoming a nervous habit. However, most children will stop sucking their thumb on their own by the time they are 5 years old, if no one draws too much attention to it.
Pacifiers can also calm babies. Pacifiers come in different shapes, but most are designed so they are not going to create problems with developing teeth. One-piece pacifiers are safer. Never place the pacifier on a cord or ribbon and place around babys neck. This could strangle a baby.
Dont over-use a pacifier. Try other ways of comforting your baby as well, such as holding, rocking, patting, or singing.