![]() ![]() The herpes virus requires arginine (an amino acid) to perform certain vital functions such as protein synthesis and replication.The theory associated with the use of lysine in treating fever blisters/cold sores is typically this: 1) The basis of this treatment theory: The lysine/herpesvirus relationship. Lessen the duration or severity of those outbreaks that do occur.Īs we explain below, however, despite the popularity of this advice (which is most notably touted by companies that sell lysine products) this treatment approach is only partially supported by medical research.Minimize your frequency of cold sore (fever blister) outbreaks.L-lysine dietary supplements are frequently promoted as a do-it-yourself therapy that can help to: Doing so helps to moisturize and soften them so they are less likely to crack and bleed.ī) Treating / preventing cold sores using lysine oral supplements. 4) Soften scabs with petroleum jelly.Ī moisturizing compound like petroleum jelly (Vaseline®) can be applied to cold sore scabs. However, this potential concern places us in a position where we must state that a decision to use this home remedy approach is best discussed with your dentist first. Our search of the web, and the FDA site itself (via both their website search function and Google), did not find an official source for this warning.Some sites offer a reference source for this statement, although we could not find the warning in the document cited.These sites typically suggest that the FDA’s concerns involve the potential for systemic tannic acid side effects (due to absorption through the lips), and follow that with a statement that the warning is not substantiated by research but the FDA does feel that it warrants further study. (We assume this could include tannic acid sourced from tea bags.) Historically it’s been suggested that a moistened tea bag (regular black tea, like that used to brew ice tea) is placed on the area where the first signs of fever blister formation have started to appear (the Tingle stage), with the bag applied for a few minutes every hour.Ī number of websites suggest that the FDA has concerns about the safety of the application of tannic acid to the lips as a treatment for cold sores. ▲ Section references – Rodu, Vilhelmova-Ilieva Discussion. Some over-the-counter medications contain tannic acid (i.e.Its use was shown to be effective in limiting the extent of cold sore formation (as determined by lesion size). A study by Rodu tested the use of a preparation that contained tannic acid as the active ingredient.Tea contains tannic acid, a compound that’s been shown to have some inhibitory effect on the herpes simplex virus by way of inhibiting its ability to replicate (produce more virions). ![]()
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