My son is due for a 14th week vaccines, in his 10th week our doctor recommended pentaxim along with hepa B, it was painless so we went for it, I wanted to make sure is pentaxim is really as effective as the other painful vaccines as I've heard than pentaxim has very less immunity as compared to the other vaccines, also kindly guide which are the best vaccines for a 2.5 month old baby since he is due for his 14th month vaccines.