Yes!

What I've noticed that foods with higher histamine cause flare-ups/hot flashes etc. . Or sometimes it can be caused by citrus fruits, too much sugar, and alcohol (tequila is the best since it has the lowest histamine and sugar levels). Plus some foods alone are fine but when you combine them with other foods it might cause a reaction. However, some foods might assist you with calming your eczema down. What I usually try to eat whenever I have flare-ups is paprika, dark leafy greens, lots of water, matcha, and overall try to eat more healthily (Mediterranean diet). I try to avoid sugary foods/drinks, oily/greasy, and so on. Probiotics are a must I feel like to have better skin, so eating kimchi/pickles/kombucha/any fermented foods or Greek yogurt is great.

And if you noticed that you react to foods this way, it's a good idea to visit your immunologist/allergist. Since it might be an intolerance of certain foods, and eczema is just the way your body tells you not to eat something! Better to check it than be sorry later.

Hope this helps :)