Rosacea can be triggered or worsened by spicy foods, alcohol (especially red wine), hot beverages, and very hot meals, which increase blood flow and cause flushing, redness, and irritation. These foods can dilate blood vessels and make symptoms more intense in sensitive skin. To reduce flare-ups, it helps to follow a diet rich in anti-inflammatory foods like fruits, vegetables, whole grains, and omega-3 sources, while avoiding personal triggers and keeping food and drinks at cooler temperatures.