Cold sores are usually harmless to older children, but they can be very dangerous to babies as they’re immune systems aren’t fully developed.
If you’re a caregiver with a cold sore, it’s vital that you do not kiss or share things such as spoons and cups with your baby - but don’t worry, the virus cannot be transmitted via breast milk.
If you think your baby has a cold sore, they will need medical assistance immediately as the consequences can be severe.