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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.
Apply vanilla oil or vanilla extract to the area of concern as soon as you feel a tingling sensation. Soak a cotton ball with vanilla extract and hold it in place for one to two minutes; do this four times daily until the cold sore heals. The anti-inflammatory activity helps heal the cold sore and reduce pain.