See the Colgate online article about cold sores and fever blisters to learn what causes fever blisters as well as cold sores and other types of viruses.
Now it is time to identify what may cause your cold sore outbreaks, so you'll have. . So fight back by using lip balm with SPF, wearing a wide-brimmed hat, and .
Symptoms; How a pharmacist can help; Things you can try; When to get medical help; Treatment from a GP; Causes. Cold sores are common and usually clear .