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Cold sores

Also called: herpes labialis
Infection with the herpes simplex virus around the border of the lips.
  • Spreads in various ways
  • Treatment can help, but this condition can't be cured
  • Usually self-diagnosable
  • Lab tests or imaging rarely required
  • Chronic: can last for years or be lifelong
Oral herpes spreads through close personal contact, such as kissing.
Oral herpes causes tiny, fluid-filled lesions called cold sores or fever blisters, which can recur.
Medications can speed healing and reduce recurrence.
Very common: More than 3 million US cases per year
Consult a doctor for medical advice Sources: Mayo Clinic and others. Learn more
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