Friend has cold sore and my other friend says I’m being over protective of my 4month old baby

I don’t know if this is the right place to post this but here it goes, I have a 4month old baby and one of my friend has a cold sore and I’ve told them time and time again not to kiss my baby on the Face or hands. Yesterday my boyfriend caught her kissing our son on the cheek and he politely asked her not too we explained to her and another friend that was there that a cold sore is technically herpes just a different strain of it, my friend who gets cold sores understood but my other friend felt the need to tell me I’m wrong that a cold sore is not herpes and that my son cannot get one because he has his shots. We then explained what HSV 1 is to them and then they continued to say it’s not herpes and that my son needs to build up his immune system anyway now they are pretty much telling me I’m wrong that a cold sore isn’t contagious and that we’re being over protective what are your thoughts on this are we wrong ? Is a cold sore not herpes? Because we are 100 percent sure that it’s a strain of herpes if we are wrong then we will apologize but to say our son needs to build a immune system feels like a big FU to us. Again sorry if this is in the wrong place and sorry for any punctuation errors I’m really frustrated.Edit: Thank you to all who have commented I appreciate every single one of your comments. We’ve tried to explain it more to them but they don’t seem to want to listen. We’ll be taking some time away from those friends because like most of you said they do not respect our boundaries as parent. Thanks again to all ! via /r/Parenting https://ift.tt/2oVLYGo