For many people, occasional facial flushing in their 20s or 30s may feel harmless — a temporary reaction to heat, stress or a glass of wine. But as the years go by, that redness can become more frequent, more intense and harder to ignore.By midlife, some individuals notice persistent facial redness, visible blood vessels, or acne-like bumps that appear without warning and linger longer than before. While these changes can feel sudden, skin specialists say they often develop gradually, shaped by