What Is the Best Medicine for Cold Sore?

Q:
What is the best medicine for cold sore?

A:
Cold sores clear up without treatment in two to four weeks generally. Some prescription antiviral drugs may speed the healing process. Examples include:

  • Acyclovir (Xerese, Zovirax)
  • Famciclovir (Famvir)
  • Penciclovir (Denavir)
  • Valacyclovir (Valtrex)

In general, the pills of these products work better than the creams. For very severe infections, some antiviral drugs can be given with an injection.

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* The Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.