El tiempo que la piel estará enrojecida después de la terapia con luz azul depende de qué tan fuerte sea el tratamiento y del tipo de piel que tenga.. Pero aquí hay una regla general.:
Duración típica del enrojecimiento Tratamiento leve en el hogar (Máscaras LED, dispositivos portátiles):
0–2 horas (generalmente no hay enrojecimiento persistente).
Trato profesional (en un dermatólogo o clínica):
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 (p.ej., centella asiatica, niacinamida).
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).
