my son is 3.5 months old..he has started drooling a lot..what could be the reason? and whenever we take him on our shoulder he tries to bite ..

A. Teether you can introduce to the child now this is a very good age your child has started to have his teeth which is why your child is biting you and is very discomfort the way you are mentioning also you can start with tablet number 21 under homeopathy