Oral herpes is an infection caused by the herpes simplex virus (HSV). The virus causes painful sores, most commonly on or around your lips, but you may also get sores on your tongue, the roof of your mouth, and inside your cheeks. These sores are also called "cold sores" or "fever blisters."

Oral herpes is an infection of the mouth, lips, and gums caused by herpes simplex virus, specifically, type 1 (HSV-1). Oral herpes presents as fever blisters and cold sores. Some people with oral herpes have no symptoms at all.

Oral herpes is a type of herpes simplex virus (HSV) infection that affects your mouth area. Small blisters (cold sores) form on and around your lips in episodes known as outbreaks. Your first outbreak may occur within a week or two of getting infected with HSV.

Oral herpes is a chronic condition caused by herpes simplex virus type 1 (HSV-1) and is sometimes referred to as cold sores or fever blisters. It’s a common infection around the mouth. While some infected people never develop symptoms, others may experience painful and periodic outbreaks.