Cold sores and herpes are caused by different types of the herpes simplex virus (HSV). Cold sores, also known as fever blisters, are small, fluid-filled blisters that typically appear on the lips, mouth, or nose. They are caused by HSV-1 and are highly contagious.

Herpes is a sexually transmitted infection (STI) caused by either HSV-1 or HSV-2. Genital herpes is caused by HSV-2 and is transmitted through sexual contact. It can cause outbreaks of small, painful blisters on the genitals, anus, or thighs.

Both cold sores and genital herpes are caused by the herpes simplex virus and can be transmitted through direct contact with the virus. However, they are caused by different types of virus and can affect different parts of the body. It is important to practice safe sex and to use condoms to reduce the risk of transmission of genital herpes. If you are concerned about your risk of infection, it is important to talk to a healthcare provider. They can provide you with information about prevention and treatment options.