Herpes Virus Infection
Background
Herpes Simplex virus infection usually occurs on the face causing small blisters which are called 'cold sores'.
The virus can infect any area of skin, but as it is passed on by direct skin-to-skin contact with friction, it occurs mostly on the face, hands (where it causes Herpetic Whitlows) or, once a person is sexually active, on the genital or anal areas where it is called Genital Herpes Simplex. Cold sores are extremely common: by the age of twelve years, one quarter of children have contracted the virus, mostly without having any noticeable symptoms.