5 home remedies for cold sores caused by a herpes simplex virus

Cold sores spread from person to person by close contact, such as kissing. They’re caused by a herpes simplex virus (HSV-1) closely related to the one that causes genital herpes (HSV-2). — TNS

Cold sores or fever blisters are a common viral infection. They are tiny, fluid-filled blisters on and around your lips. These blisters are often grouped together in patches. After the blisters break, a crust forms over the resulting sore.

Cold sores usually heal in two to four weeks without leaving a scar. Cold sores spread from person to person by close contact, such as kissing.