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Dr. Andrew Rynne
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Are canker sores or cold sores contagious?

Hello, I have two questions I m sure you can answer, 1. Are canker sores or cold sores the contagious ones, and which can contain the herpes virus? 2. Why does the inside of my lips turn a pale color or sometimes almost white when I eat like salt n vinegar chips or something like that? I hope you can answer these, I would love to know, thank you!
Thu, 6 Nov 2014
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General & Family Physician 's  Response
HI, thanks for using healthcare magic

Cold sores are due to the herpes virus. There are different types of herpes viruses but cold sores are usually associated with the herpes 1 virus though some persons may have sores due to herpes 2.

Herpes 1 infections (cold sores) are very common.

The change in color of your lips with certain foods may be due to reaction to the active ingredient present.

I hope this helps
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