Fever blister vs cold sore, are they the same thing?

Question

Quick one, is a fever blister the same as a cold sore? I think they are two names for the same thing caused by HSV-1, but I want to be sure. And why is it called a fever blister?

SteadyWillow50 · Answer

Same virus, same prevention approach either way.

AmberMarmot93 · Answer

Yes, fever blister and cold sore are the same thing, both HSV-1.

SteadyLark20 · Answer

Called a fever blister because illness and fever can trigger them.

Fever blister vs cold sore, are they the same thing?

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