I started using lemon juice, fresh or concentrated from one of those small lemon shaped bottles, every evening on my face. After a quick face wash, I dry my face and then splash little amounts of lemon juice all around my entire face. I put on as much so that the whole face is wet from the juice, and then I let it dry by it self -- that rarely takes but a few minutes.
And the result -- I have never experienced anything like it! My rosacea seems to dry out completely, the skin is smooth and soft, and if there is an outbreak, it only "hangs on" for a day or two. Before I started to use the lemon juice, one tiny outbreak would take weeks to heal. Now it all disappears in no time.