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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.
#5: Avoid Acidic and Spicy Foods. If you are prone to getting cold sores, you might benefit from avoiding acidic and spicy foods. There is anecdotal evidence suggesting that limiting the consumption of such foods helps control cold sore outbreaks in some people.