Many people get cold sores. It is estimated that 80% of the population is infected with the herpes simplex virus and there is no cure for the virus. The good news is the virus usually lies dormant, but is activated when we get sick from other things or are overly stressed. When you have an outbreak you need to be careful because of coldsores contageous.
A Coldsores contageous is high and you can pass it from one person to another easily. The most common method of passing the cold sore to someone else, is by having them use a product like a lip balm that you use, kissing someone, or having them come directly into contact with the cold sore. Remember a cold sore can be contagious even when it is not visible.