Not long ago, an acquaintance had a cold sore the size of Saturn festering on her lip for at least two weeks. The eruption was down right distracting, like one of those car crash situations where you don’t want to look, but absolutely can’t look away. I was dying to throw some Lysine in her direction. Lysine inhibits the herp by repressing the metabolism of Arginine, another amino acid which acts as herpes food. Many foods contain Lysine in various levels. For example, beans and lentils contain quite a bit. Generally speaking, most of us don’t get enough of this essential amino acid to effectively inhibit canker sores without a dietary supplement. Clinical studies suggest that at least 1250 milligrams must be taken for significant results. Keep in mind that gelatin contains Arginine, so definitely avoid Lysine supplements containing this counterproductive ingredient.Synthetically produced Lysine is cheaper than naturally sourced, but both seem to do the trick to combat fever blisters. Use Lysine to ward off an attack, shorten its duration, and speed healing. Lysine is a cheap, natural, and effective treatment for the herp – pass it on.