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Several different vaccines are being developed against HSV types 1 and 2but these appear to protect only people who have never been infected.
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The first sign of a cold sore is a tingling, burning or itching.
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The border of the lip is the most common place that these sores appear.
The only symptom is an outbreak of cold sores, although you may also have swollen glands.
What's up with that?
Your lack of sleep may be triggering your cold sore.
Symptoms include white spots inside the mouth or on the tongue, sore throat and difficulty swallowing.
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