Rosacea is a multi-faceted chronic skin condition that is believed to be linked to the nervous system. Other triggers include sun exposure, sudden changes in temperature, skin irritants, strong emotions, alcohol, and spicy foods. Rosacea mostly affects the central part of the face and can show up as constant or occasional redness. In more advanced cases, you might also see small, visible blood vessels, red bumps, pimples, or even thickened skin. It usually starts after middle