When they don't have it.
UV exposure is a common trigger for cold sores. I would not recommend their use for people with cold sores.
No. I have canker sores and have never kowingly given some one canker sores. Canker sores are not caused by the same thing that causes cold sores and as far as I know they are not contagious. But to be on the safe side avoid kissing this person until their canker sores go away.
Cold sores result from infection with the herpes virus.
Bactroban is not effective for viral cold sores.
no your wisdom teeth has nothing to do with cold sores or fever blisters. Cold sores and fever blister are a type are herpes and it is from using other people lip stick.
You can take the chance if you like, but to be safe, don't do it. The virus that causes cold sores is very contagious when the sores are in evidence and for a period before they show. Best bet is to be cautious and don't chance spreading this painful affliction any more than you have to.
It is herpes. Sometimes people refer to them as 'cold sores' but it is the herpes simples virus.
You don't get cold sores from the wind.
Cold sores are very contagious.
Cold sores aren't airborne.
Cold sores are caused by a virus, and polysporin is not active against viruses, so it won't work for cold sores.
They do have cold sores in South America.