I probably ate and touched my mouth and touched him.. I'm just obsessing over it. It seems if newborns contract the herpes virus, it usually kills them from what I've read.
Immunity is passed on from mother to child when you have had coldsore's before, the concern is when you havent had a coldsore before and your baby is less than six weeks old.
This happened to us several months ago... Everything will be okay! Just don't kiss him again until it clears up. I called dr and she assured me to relax and that baby was fine. He was fine and a week later the cold sore cleared and I couldn't wait to Kiss him!