Cold Sore Transmission: Risks and How to Prevent Spread

It is possible to transmit the herpes simplex virus (HSV), which causes cold sores, to someone else through direct contact, such as kissing. However, the risk of transmission is relatively low, and it is important to note that not everyone who is exposed to HSV will develop a cold sore.

If someone has an active cold sore, it is important to avoid kissing or other forms of direct contact with them to reduce the risk of transmission.