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When do you get it?

There are many triggers for a cold sore to appear or to activate the herpes simplex virus. Cold sore outbreaks are generally a result of psychological or physical stress.

Common triggers include:

  • Fatigue
  • Low immune system
  • Illness such as fever and cold
  • Cold weather
  • Exposure to intense sunlight (UV)
  • Monthly period
  • Dry or chapped lips
  • Injury to the lips (e.g. after dentist treatment, hot tea, etc)

Not everyone’s cold sore outbreak is trigged by the same trigger. Cold sore triggers vary from person to person. Try to identify what may cause your cold sore outbreaks, and help avoid the cold sore developing.

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