4 doctors weighed in:

A cold sore just sprouted on my lip and i'm monogamous, does that mean my girlfriend of 4 years gave it to me by cheating?

4 doctors weighed in
3 doctors agree

In brief: No

The virus that causes cold sores is acquired by contact, but once you have it it's yours for life.
Most people pick it up as children from older relatives.

In brief: No

The virus that causes cold sores is acquired by contact, but once you have it it's yours for life.
Most people pick it up as children from older relatives.
Dr. Kitturah Schomberg-Klaiss
Dr. Kitturah Schomberg-Klaiss
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Dr. Jonathan Jassey
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