My baby is 3 months and 17 days old. He puts his hands in his mouth a lot though his stomach is full. I remove it several times but again it puts it in his mouth. I wanted to know if Baby soother/pacifier is good for him. Does it cause any harm to the baby? I wanted to know if I can use it. If yes, how should I use it. Should I put an empty soother in his mouth or should I put honey in it or some juicy fruit or anything else and give him?