Question

Oral Herpes (Cold Sores)

How long does it take for symptoms of a cold sore to appear?

A Answers (2)

  • AMehmet Oz, MD, Cardiology, answered
    How Long Before I Catch That  cold sores
    Watch this video to learn more from our experts about cold sores.


  • AStacy Wiegman, PharmD, Pharmacy, answered
    Cold sores go through several stages, and generally last anywhere from one to three weeks. The first symptom you notice will probably be a tingling or itching sensation on your lips, chin, nose, or cheek. This is a sign that a cold sore is forming. This stage lasts one or two days, after which a blister or cluster of blisters will form. About a day later, the blister will weep, or ooze; this typically lasts about a day. Afterwards, the blister will scab over and slowly heal. This stage can last several days to several weeks.
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How do I know if I might be developing a cold sore?