Herpes simplex virus belongs to herpesvirus family. Herpes simplex virus is classified into 2 types: namely HSV-1 and HSV-2. This virus causes incurable disease herpes. HSV-1 is commonly known for cold sores whereas HSV-2 for genital herpes. Herpes simplex virus cannot be eradicated totally from the infected living being but can be treated to some extent partially.