The following are answers to questions you may have about the virus. The virus can enter your body through a tiny break in the skin if you come into contact with someone's active sore. Often, people become infected after kissing someone who has a cold sore. Most adults in the United States have been exposed to and carry the virus. Once infected, the virus remains with you throughout your life.
Most people never know they have the virus and never develop any symptoms from it.
Any infection, such as a cold, can prompt the virus to show itself. Trauma, like a scrape or cut, sun exposure, and even stress can also activate the virus. The first sign of the active virus is usually a red, swollen bump. If this appears on your lip, mouth, face, or other part of your body, see your doctor. Often the bump burns, stings, tingles, itches, or hurts as it develops into one or several cold sores or blisters You also may feel sick or lack energy.