Once the cold sore heals, the virus remains dormant in the body - retreating to nerves located by the ear. Reoccurring episodes are common. Back to Top Learn how to recognize a cold sore. If you are unsure whether you are experiencing a cold sore outbreak, see your physician for proper diagnosis. Back to Top Learn how to prevent spreading.
Cold sores are extremely contagious.
The virus can be passed at any time during an outbreak - from the first tingle until the affected area is completely healed. Close physical contact with others should be avoided. Also, try not to touch your cold sore. This will increase the chances of spreading the infection to other areas of your body. If you have to touch it, wash your hands immediately.