A woman looking her face in a mini mirror before applying an antiviral cream or ointment to treat Herpes labialis on her lower lip. - stock photo

Close-up photo of a woman with shallow depth of field of a big herpes simplex infection on her lower lip. A stock photo of a woman with herpes viral cold sore on her lip and mouth. Antiviral cream can relieve burning, itching, or tingling. Herpes labialis, commonly known as cold sores, is a type of infection by the herpes simplex virus that affects primarily the lip. This is the most common form of infection usually called cold sores or fever blisters.