What Is the Best Medicine for Cold Sore?

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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. Keyword: best cold sore medicine; best medicine cold sore; best medicine cold sores over counter; best otc cold sore treatment