One in five of us suffer with cold sores, or 'coleslaws' as spluttering children call them. They are created by herpes simplex, a virus that sits quietly in nerves around the mouth, only gracing ...
The first causes cold sores and fever blisters on the mouth, and is thought to be responsible for most cases of genital herpes in the UK. HSV-2 is most commonly associated with genital herpes alone.