Cold sores are blisters that form on or around the mouth and are caused by the Herpes Simplex Virus. Symptoms can last one to two weeks. Triggers include stress, UV exposure and procedures such as laser, performed around an area prone to breakout. Cold sores are contagious, avoid touching the affected area and sharing personal items until the cold scar has scabbed over or recovered. Your Dermatologist can prescribe antiviral or pain medication to help with recovery. Have you ever had a cold sore

Herpes simplex (Cold sore): All you need to know

Herpes Simplex, Causes, Signs and Symptoms, Diagnosis and Treatment.