Half of Americans are suffering from an incurable disease that causes painful - and embarrassing - blisters and sores around the mouth. About 122million people have herpes simplex virus 1 (HSV-1), the ...

A diagnosis of herpes simplex labialis (HSL) was made based on a history of recurrent labial lesions presenting classically as vesiculation (blisters) with subsequent crusting and ulceration. The ...