Picture of Cold Sore above Lip: Picture of Cold Sore on Lower Lip: Picture of Cold Sore on Side of Mouth Colds Aren’t to Blame. Cold sores, despite the name, are not caused by the common cold. They are caused by a virus, specifically, the herpes simplex virus (HSV). They can appear individually or in clusters. Despite their name, cold sores have nothing to do with colds. Some people confuse cold sores with canker sores. The herpes virus causes a typical rash in the genital area and also causes fever blisters (cold sores). This gallery shows pictures of typical herpes rashes. Mouth sores pictures from canker sores, cold sores, herpes, and mouth ulcers. I have had cold sores sinse childhood on both my mouth and nose. I do know what will trigger sores and can feel early signs before visual signs appear. Animated Teeth is a good place to start when you want to see the stages of cold sores broken down clearly. Experts disagree about exactly how many stages of cold. The virus that causes cold sores is known as the herpes simplex virus (HSV). There are two types of HSV, type I and type II. Cold sores are usually caused by type I. Pictures of harry tongue, lip cancer, tonsillitis, oral herpes, tongue cancer, throat and mouth ulcers, oral cancer, salivary galand stones pictures and other disease. [ Mouth Sores / Mouth Ulcers] Mouth Sores Pictures Hardin MD; Oral ulcer Mediscan clipart library, London, United Kingdom ; Mouth ulcers, cold sores, etc.