Yep definitely have reacted to caramel, creme brûlée, and flans before!
I used to use Rutin to knock down any iritis (and also some inflammation in my hands, knees, and feet), but that was before I ditched dairy and went full NSD. Rutin is a plant derived antioxidant, but isn't to be used by pregnant women - it could spike adrenaline levels if you have too much (it is an adrenaline sparing antioxidant), and that could bring on labour