A member asked:

When is a cold sore lesion no longer contagious? i know herpes can be transmitted regardless, but want to know when an actual cold sore is ok.

A doctor has provided 1 answer
Dr. Robert Killian answered

Specializes in General Practice

Herpes Is Confusing: There is no answer to your question. There is no known way to predict if a cold sore is also shedding virus or not. It can be both.

Answered 7/22/2013

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