Sekine K, Kawashima T and Hashimoto Y. Comparison of the TNF-a Levels Induced by Human-Derived Bifidobacterium longum and Rat-Derived Bifidobacterium animalis in Mouse Peritoneal Cells. Bifidobacteria Microflora 1994;13(2):79-89.
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.
AbrevaÂ® Cream is the only nonprescription cold sore medication approved by the FDA to shorten healing time and the duration of symptoms. You could knock out your cold sore in 2Â½ days when you use AbrevaÂ® Cream at the first sign of a cold sore.*. *Median healing time 4.1 days. 25% of users healed in 2.5 days.