I have five months old twins...they both keep driping saliva all the time...is it same with all babies nd is it normal

most babies begin drooling around the time they are 3 months old, and it goes on till at least they are a year old or even more... rest assured, drooling, or dripping saliva, is a very natural process, and it means that your baby is having a normal development. one more thing you should keep in mind is that as your babies start to eat and chew, the salivary glands will get more active, and result in drooling. do have a look at this link which will answer a lot of your questions http://www.livestrong.com/article/551798-salivation-in-babies/