As with all viruses, it’s amazing that something so small can cause so many problems. Here are some photos of people with active herpes lesions. Although it commonly appears on the mouth (in the case of herpes labialis), the virus often erupts on many different parts of the body. In contrast to canker sores, which are normally characterized by an indentation and occur inside the mouth, cold sores are most often raised, or clusters of bumps that occur outside the mouth – typically on the lips.
Woman with a cold sore that has crusted over and started to heal:
Unlike canker sores, the herpes virus is not confined to the mouth area: