I can't really offer that much help but my own experience with rosacea. When I eat low carb, it's always been better. Now that I am doing whole30 with no sugar, dairy or grains, taking fish oil every day my skin is the best it's been in years. So I think diet is a huge part and our skin reflects our health and what you eat.
A food log might help when you get a breakout log what you ate that day and eventually you might find a pattern.