What Causes Cold Sores On Lips Hsv 1 Explained?
Cold sores on your lips are caused by the herpes simplex virus type 1, or HSV-1. This virus spreads through direct contact, like kissing or sharing a drink. Once the virus enters your body, it stays there for life, hiding in nerve cells near your cheekbone. Most people are exposed to HSV-1 as children, but … Read more