Facial redness is broadly approached by dividing it into a "vascular type," where the problem is dilated blood vessels themselves, and a "barrier-damaged type," where the skin's protective layer is weakened and easily irritated. The vascular type is characterized by visible capillaries or sudden flushing in response to temperature changes or emotional shifts, and may be accompanied by rosacea tendencies. The barrier-damaged type presents with tightness, stinging after cleansing, and irritation from cosmetics, often caused by excessive exfoliation or improper home care.
In practice, the two causes are often mixed. For skin with both dilated blood vessels and a weakened barrier, designing treatment that addresses both the vascular issue and barrier recovery can help reduce recurrence. The first step in treatment is to determine which factor is more prominent through examination with a magnifying scope or skin diagnostic device.




