What are oral herpes simplex virus infections?
• Oral herpes simplex virus (HSV) infections are diseases caused by the herpes simplex virus (germ). These may affect any part inside or around the mouth, including the lip and the area around it. An oral HSV infection may be primary (first) or recurrent. • Primary HSV infection commonly leads to a disease called gingivostomatitis. This is often seen in children but can also occur in adolescents and adults. After the first infection, the virus can hide in your nerves and may return. If it returns, it is now called a recurrent HSV infection, which is usually milder than the primary infection. A recurrent HSV infection is commonly known as cold sores or fever blisters. You may get sores due to this infection many times in your lifetime.
