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When Is A Cold Sore No Longer Contagious?
So, you have a cold sore.
Are cold sores always herpes
Maybe it's your first one, or perhaps these pesky blisters make reoccurring appearances. Either way, the virus that causes cold sores is highly contagious, and you may be wondering when you can return to normal activities — like using your favorite lip balm or kissing your baby niece.
Once you understand what makes cold sores contagious, you can know when your chances of spreading the virus decrease.
Why Are Cold Sores Contagious?
Cold sores are caused by the herpes simplex virus (HSV-1).
This common and highly contagious infection affects over 67 percent of the world's population under the age of 50, according to the World Health Organization (WHO). Though most infections are asymptomatic, they can cause painful blisters or ulcers at the infection site.
Though HSV-1 is mainly transmitted through oral-to-oral contact by sores, saliva, and surfaces around the mouth, the virus can be indirectly spread by sharing utensils, lip balm, clothing, and other surfaces that come in contact with the
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