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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.
By inhibiting this amino acid it works to quickly heal your cold sore. The pain and discomfort of a cold sore is also alleviated by the milk. You need a cotton ball and one tablespoon of milk and then apply this right on the cold sore and hold it in place for at least five minutes.