블루라이트 치료 후 피부가 붉어지는 기간은 치료 강도와 피부 유형에 따라 다릅니다.. 하지만 여기에는 일반적인 규칙이 있습니다.:
일반적인 홍조 지속시간가벼운 재택 치료 (LED 마스크, 휴대용 장치):
0-2시간 (일반적으로 지속적인 발적은 없습니다.).
전문적인 치료 (피부과나 병원에서):
A few hours to 1 day (stronger devices may cause slight redness).
For sensitive skin/rosacea:
Up to 24–48 hours (if skin is reactive).
Why does it happen?
Blue light temporarily stresses bacteria and oil glands, causing mild inflammation.
Some devices also emit heat, which can increase redness.
How to Reduce Redness Faster
Apply Aloe Vera or a Soothing Serum (예를 들어, centella asiatica, 나이아신아마이드).
You can also use a cold compress for 5–10 minutes to calm the skin.
Avoid products with active ingredients like retinol, acids or vitamin C for 24 hours after treatment.
Moisturise and use SPF (if going outside).
When to WorryIf the redness lasts more than two days, or if it becomes swollen or burning, or looks like a sunburn, see your dermatologist (this is rare, but possible with overuse or sensitive skin).
