There are many and acupuncture with or without herbal medicine can be extremely helpful as well. But proper treatment requires proper diagnosis (see What Does Acupuncture Treat?) - for an explanation of the basis of treating the causes vs. the symptoms in Chinese Medicine. Our rosacea page has one formula listed, but that shouldn't be construed to be the one for you just that it is somewhat commonly used (which in short means that what it is "really" for, that is the tcm diagnosis, is one of the more common diagnoses that may involve rosacea).
I would strongly suggest you consult directly with a fully trained acupuncturist who also practices Chinese herbal medicine in your area. They should be able to help you. With proper treatment you can go a long way further in many cases than just dealing with flare-ups, you can go into a more permanent remission with proper treatment - so it's worth the effort in doing it correctly.