Ask Dr. Jen Tan

Cold sore causes

Cold sores are caused by the Herpes Simplex Virus-1 which can be activated by a number of trigger factors


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  • Diana Mensah 's photo avatar
    Diana Mensah — 15.04.2017 16:43
    Could pregnancy cause cold sore


    • Jen Tan's photo avatar
      Jen Tan — 17.04.2017 11:06
      Yes, this is possible. Cold sores arise when the immune system is working below its normal level or when under strain. This is the reason that they might develop when one is under stress. Pregnancy depresses immune function in order to protect the baby from the mother's immune system and cold sores can arise during this time of life.


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