Cold sores – small blisters on the lip or around the mouth – are surprisingly common. According to the American Academy of Dermatologists (AAD), more than half of Americans age 14 to 49 have the virus that causes the sores. If the virus reactivates, or “wakes up,” the AAD says, you could get the sores.… Continue reading Advice from a Dermatologist: Treating Cold Sores At Home