Some foods cause blood vessels to dilate, which exacerbates flushing and redness on the skin. These include spicy foods, such as hot sauce, black pepper and hot peppers; acidic foods such as vinegar, citrus fruits, citrus juice and tomatoes; and many fruits and vegetables including red plums, bananas, figs, lima beans, navy beans, spinach, eggplant, peas and avocados. According to the International Rosacea Foundation, several flushing foods also include yogurt, soy sauce, liver, vanilla and yeast extract.
Additionally, people with rosacea should avoid stimulants such as caffeine (found in sodas, tea, coffee and chocolate), large amounts of sugar (found in candy, cookies, cakes and soda), cigarettes and foods sweetened with aspartame. These items stimulate the entire body, including the sebaceous glands, which then secrete additional oil and clog pores, exacerbating the facial bumps.