I can’t take credit for this cure. A life-long nurse told me about it a few years ago, and it’s worked for us ever since. I’m not sure if she’d be comfortable having her name revealed here, so I won’t do it. But I’ll always be grateful to her for the advice.
In a few words, cold sores are cured and even prevented by Lysine. Any brand should do. Just go to your local supermarket or drug store and pick up some Lysine pills. They’re white, round, medium-sized as pills go, and they’ll do a number on your cold sore.
I, for example, have had these things since my childhood. Whenever I got stressed, or ate too much sugared stuff, or happened to be recovering from a cold or some other illness and my immune system was down, I got a cold sore. I used to be terribly embarrassed about them, and I still am, to some degree. Sometimes I’d get them four or five times a year, and each one took about 2-3 weeks to go away completely.
Now, whenever I feel that tingle in my skin and know that one’s on the way, I take a Lysine pill. You can take up to 3-4 pills a day, just don’t take them all at once. It’s not a sure-fire, 100% kind of thing, but I would say the overwhelming majority of the time, the cold sore doesn’t even show up on the skin. It just goes away. And when it does manage to break out, taking Lysine while you have it will make it go away sooner.
I don’t know why other cures don’t work, particularly the useless brand-name cremes that cost upwards of $20 for a tiny little tube (they only make things worse for me) — but inexpensive Lysine does the job just great. For less than $10, you get a huge pill bottle that will likely last you more years than you’ll remember.