Hi there...just needing some advice...I have been reading about the effects of a cold sore on newborns....and I now have a possible cold sore on my top lip...its just a red mark but it is tingling....i have been having baby blues and feel run down....I am at a panic stage as have a 4 week old and dont want to transfer this possible thing on to them.....i have been constantly washing my hands and over the past day not kissing my baby.....feel like im being paranoid from reading the horror stories online....just think i need to watch this space and see if the red mark worsens and then go to see GP......just wanting to see if im being stupid or not!