Which form of herpes generally causes cold sores or fever blisters from the waist up?

Herpes type I, also known as oral herpes, is primarily responsible for causing cold sores or fever blisters around the mouth and on the face. This virus is highly contagious and is typically transmitted through close personal contact, such as kissing or sharing utensils. Unlike Herpes type II, which is more commonly associated with genital infections, Herpes type I focuses on areas above the waist. Cold sores usually appear as small, painful blisters that may eventually crust over and heal within a week or two. Understanding the specific characteristics and common locations of the herpes viruses is essential for identifying and managing these infections effectively.