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Doctor insights on: Cold Sore Contageous

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Dr. Heidi Fowler
1,014 doctors shared insights

Cold Sore (Definition)

Also referred to as fever blisters, cold sores are small, painful fluid-filled blisters that are usually found around the lips. Cold sores are generally caused by the herpes simplex virus 1 which is related to herpes simplex virus 2 that causes genital herpes. Cold sores are very contagious and can be spread by mouth to mouth contact. They can spread to the genitalia and cause genital ...Read more


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No cold sore no problem non contageous or myth?

No cold sore no problem non contageous or myth?

Myth: Less contagious if no sore. But good evidence to suggest that you can shed the virus even without an active ulcer. ...Read more

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Cold sore - how contagious are they?

Cold sore - how contagious are they?

Quite contagious: Cold sores can be spread by touching cold sores, kissing, sharing glasses, silverwear, toothbrushes or other personal items. ...Read more

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How contagious are cold sore usually in the first day?

How contagious are cold sore usually in the first day?

It is contageous: If you have a cold sore you do not want to kiss anyone or do anything else or they can get the virus. ...Read more

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Does shedding of a cold sore lesson as years pass. Does a cold sore less contagious after having it for year?

Herpes Information: I believe you may be operating on old and outdated information. We now know 1. 90% of those infected do not have sores or outbreaks. 2. If you are infected you will shed the virus even without a sore at unpredictable rates and on an unpredictable schedule. Anyone in relationship who is positive, their sexual partner needs to know their herpes status. ...Read more

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What do you advise if I have a cold sore - contagious?

What do you advise if I have a cold sore - contagious?

Yes- cold sores are: Contagious. Your doctor can prescribe Valtrex (valacyclovir) or other antiviral medications to help reduce contagiousness. ...Read more

Contagious (Definition)

One is able to transmit an infection to another by ...Read more