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.
Cold sores last for around seven to 10 days, but can sometimes take two weeks or longer to heal. They're sometimes confused with canker sores, which are not contagious but produce small, painful ulcers in soft tissues of the mouth, such as the tongue and the walls of the mouth. Natural Cold Sore Remedies. While there's no cure for cold sores, there are a few remedies that are being explored to minimize outbreaks, control the pain, or promote healing. 1) Lemon Balm. Lemon balm (Melissa officinalis) is an herb in the mint family that may promote the healing of blisters.