Cold sores are caused by the herpes simplex virus (HSV). There are two types of herpes simplex virus: HSV-1 and HSV-2. Both virus types can cause lip and mouth sores and genital herpes. The herpes simplex virus usually enters the body through a break in the skin around or inside the mouth.
Cold sores more rarely appear on the gums and the roof of the mouth. Cold sores are caused by herpes simplex type 1 virus, which lies dormant in the body and is reawakened by factors such as stress, sunburn, or fever from a wide range of infectious diseases, including colds.
Cold sores usually appear on the lip; canker sores affect the inside of the mouth. Canker sores don't involve the herpes virus and aren't contagious. Their cause .
Besides being itchy and painful, cold sores make you feel self-conscious. This slideshow illustrates how to prevent and treat cold sores caused by the herpes .
See a picture of and learn about cold sores (fever blisters), in the. Cold sores are fluid-filled blisters or ulcers that form on the lips and around the mouth.
Oral herpes is a viral infection mainly of the mouth area and lips caused by a specific type of the herpes simplex virus. Oral herpes is also termed HSV-1, type 1 .
The 5 stages of cold sore formation – Pictures, signs & symptoms, timeline.. are usually distinguished from other types of mouth sores by way of evaluating:.
Cold sores, commonly known as fever blisters, are small lesions filled with fluid that occur around and/or on the lips. Often these blisters are clumped or grouped