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A Sharecare Ad Target User , Administration, answered. An outbreak of oral herpes, or cold sores, should go away on its own in about one or two weeks. Antiviral medications can help them heal faster if taken early. Talk to your doctor if your cold sores do not go away after two weeks. Helpful? 1 person found this helpful.
Use a separate towel and face cloth â For the simple reason that cold sores spread so easily, if you or anyone else in the family has a cold sore, make sure everyone else knows not to use their towel to prevent contamination. Take painkillers â They will just take the edge off the pain of your cold sore.