Herpes - oral Cold sore; Fever blister; Oral herpes simplex; Herpes labialis; Herpes simplex www.nlm.nih.gov/medlineplus/ency/article/000606.htm - Medical EncyclopediaCold Sores (Orofacial Herpes) (Logical Images) ... and face, known as orofacial herpes simplex, herpes labialis, cold sores, or fever blisters, is a common, recurrent skin condition associated with infection by the herpes simplex vir