cold sores
"I have gotten cold sores/fever blisters since I was a young boy. I too have tried it all. I find that taking a small amount of Lysine and eating a Lysine rich diet, low in arginine help to prevent them, but they inevitably come around. I just had a cold sore and it was a tricky one. Sometimes they don't start tingling until it has already swollen. Once I realized it was one, I had waited a full day too late, but I was still very impressed. Thirty minutes after taking one, the tingling stopped. The next morning it was half the size. I had two that day and by the third day it was gone. I have every hope that if I take it within an hour next time, it will stop it cold. Awesome."