I was diagnosed about 20 years ago with mild rosacea and luckily have been able to keep it that way.
Inflammation (internal and external) is a trigger for me, so echoing what others have said about skin potions. I use a gentle cream cleanser + an all-natural moisturizer with added rose oil. I have to be very careful with exfoliation...1/week with gentle scrub or 3/x with my Mia Clarisonic, generally avoiding the cheek zone.
"Checkmark" on the necessity for stress reduction!
Internally I try to eat loads of fruits/vegetables with antioxidant/anti-inflammatory properties; green tea, tons of water; not too much processed food but I am not rigid about that. Acupuncture, which I do for allergies etc, seems to help my skin as well since my focus is always getting my body's $@%^ inflammatory tendencies to dial back.
Caffeine and spice and minimal wine are still a part of my life -- I found I flushed but it was temporary.
Back then I saw no difference with Rx antibiotic gels and got worse with what was "the" treatment then, but it's certainly worth investigating new potions.
Good luck finding something that works for you!