Herpes Labialis: Understanding Cold Sore Identification & Causes

The scientific name for cold sores is herpes labialis. It is caused by the herpes simplex virus type 1 (HSV-1) and usually appears as small, painful blisters on the lips and around the mouth. It is highly contagious and can be spread through skin-to-skin contact or sharing items that have been in contact with an infected person.