Which Is Contagious: Your Canker Sore or Cold Sore?

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Our nails are a very important part of our fingers. They can show us symptoms of many terrible diseases. But, have you noticed the white area shaped like a crescent at the end of your fingernail? It’s called lunula. It is actually a pigment change under your nails and it is very sensitive. It should never be damaged.

Many people confuse canker sores with cold sores or they assume they are the same thing, but they’re not.

First, these mouth sores show up in different places: Canker sores appear inside your mouth; cold sores happen outside, says Todd Coy, DMD, Director of Cleveland Clinic’s Department of Dentistry.

Also, while canker sores are not contagious, cold sores involve a very contagious virus. You risk passing cold sores along when you kiss someone, drink out of the same container or share silverware with other people.