Cold sores are painful and oozing, and they always seem to appear before that wedding or class reunion. Also called fever blisters, the small, fluid-filled lesions typically form near or on your lips ...

It can be tempting to pop a cold sore. However, popping a cold sore releases infectious fluid from inside the blister, increasing the risk of further cold sores, infection, and scarring. In this ...

If you’ve ever had a cold sore, you know the signs. It starts with tingling, then the edge of your lip or corner of your mouth begins to burn. Then the outbreak: A red sore appears. A few days later, ...