Some online sources that have close up pictures of herpes cold sore blisters are WebMD and MedicineNet. These sites, which deal with many medical topics and conditions,have a variety of pictures that show fever blisters or cold sores caused by the herpes simplex virus. There are two kinds of this virus:HSV 1 and HSV 2
These viruses affect the mouth and lip area, causing fever blisters that may ooze and cause pain. Although fever blisters are often called cold sores, they are not the result of a cold. Transmission of this virus comesthrough contact with an infected person.
The mode of transmission can be through a kiss or by coming in contact with body fluids, such assaliva. It can take up to a week or more for the blisters to heal and go away. However, the virus is still present in the body, relates MedicineNet.The condition can recur because there is no cure for HSV infections.