I've had rosacea for almost 15 years and it really stinks!! I was on Metrogel for about 3 years. Metrogel has a habit of not working after a while. Its like you need to put it on more and more to achieve the same results.
My worst flare ups were right after lunchtime and after dinner. My wonderful new Derma put me on a med called Desonide. Since being on the new med, I don't get any flare ups anymore.
Stick with the Metrogel until you see that its not doing anything for you anymore. Who knows? It may be enough to keep your condition at bay, mine was pretty severe. My cheeks, nose & chin would get all red.