4 doctors weighed in:
How long is a herpes lesion on the hard palate of the mouth contagious?
4 doctors weighed in

Dr. Gary Alder
Dentistry
2 doctors agree
In brief: 2wk
As long as the lesion is present it may be actively sheding virus.
It is usually self limiting but trauma can keep it going. Once the lesion has completely healed an no other lesions evident the host is relatively low risk for passing along the virus.

In brief: 2wk
As long as the lesion is present it may be actively sheding virus.
It is usually self limiting but trauma can keep it going. Once the lesion has completely healed an no other lesions evident the host is relatively low risk for passing along the virus.
Dr. Gary Alder
Dr. Gary Alder
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Dr. Joseph Eastern
Dermatology
In brief: Short & long answers
The short but not-quite-correct answer: you're contagious only when a sore is present.
The longer, more correct answer: you can shed virus from the mouth even if you do not have an active ulcer; but you are most infectious when an ulcer is present. However, you cannot give it to someone who already has it - and 60% of the population already has it. So try not to worry about it too much.

In brief: Short & long answers
The short but not-quite-correct answer: you're contagious only when a sore is present.
The longer, more correct answer: you can shed virus from the mouth even if you do not have an active ulcer; but you are most infectious when an ulcer is present. However, you cannot give it to someone who already has it - and 60% of the population already has it. So try not to worry about it too much.
Dr. Joseph Eastern
Dr. Joseph Eastern
Thank
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