Cold Sores: More Common in Early Pregnancy?

I'm not sure I'm pregnant, but my period is late and I have very sore nipples. Also, I woke up with three cold sores and was wondering if pregnancy could trigger them.


Peg Plumbo CNM

Peg Plumbo has been a certified nurse-midwife (CNM) since 1976. She has assisted at over 1,000 births and currently teaches in the... Read more

Yes, indeed, pregnancy can lower your immune system, which leaves women vulnerable to viruses such as herpes type one or two. It is a good idea to begin a prenatal vitamin supplement that contains folic acid, and, of course, start an excellent diet and exercise routine.

You should make an appointment with a midwife or doctor as soon as possible. He or she may be able to recommend treatment for the cold sores. As it is possible to transmit this type one virus to the genital area, good hand washing is very important. And kissing can transmit the virus to your partner.

These should dry up and go away in a few days to a week, and then normal activity can be resumed.

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