Irritated at the doctor with my son whom is only 5 days old and this lady is awwing my baby and then…

Irritated at the doctor with my son whom is only 5 days old and this lady is awwing my baby and then she kisses him... I don't want anyone kissing him except me and my hubby especially not some stranger that could smoke cigarettes or have some sort of cold sore etc not cool I don't understand why people would do that like you wouldn't want anyone kissing your son would you??