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Why is my face red?

Why faces turn red, and what helps

Redness after skin procedures

In short

Some redness is expected after most laser, light and resurfacing treatments. How long it lasts depends on the treatment, its settings, how much tissue it injures and how your skin responds. In published studies, redness lasted about six days on average after single-pass fractional CO2 and up to three months for some people after deeper CO2 resurfacing.

Written by the Seoul Facial Redness editorial team and medically reviewed by a Korean Board-Certified Dermatologist (AAD International Fellow · ASLMS member). Last reviewed: .

A row of circles cooling from deep coral on the left to pale blush and white on the right

How long is redness normal after a skin procedure?

Redness and swelling recorded in studies, by treatment
TreatmentRedness recordedSwelling recorded
Low-fluence Q-switched Nd:YAG on raised scarsMild; resolved within a few hoursNot reported
KTP and pulsed dye lasers for vesselsA day or more in some patients; more often worse on the KTP sideOver one day in 79% (KTP) and 71% (PDL)
Single-pass fractional CO2Mean of 6 daysNot reported
Conventional plus fractional CO2Within a month for half; up to 3 months for 27%Not reported
Chemical peels, radiofrequency microneedlingVaries with the product and settings; ask for the range expected at yoursAsk the clinic

The first row comes from a Korean study of low-fluence Q-switched Nd:YAG on keloids and raised scars, where mild redness resolved within a few hours.[1] It does not tell you what to expect from every facial toning protocol, so ask the clinic about its own settings. In a split-face vascular laser trial, swelling lasted more than a day in 79% of patients on the KTP side and 71% on the pulsed dye laser side; among those whose redness lasted a day or longer, 58% said it was worse on the KTP side and 8% on the PDL side.[2]

Ablative lasers remove tissue, so recovery takes longer. In Asian patients with skin type IV, a single pass of fractional CO2 left redness for a mean of six days.[3] When conventional CO2 was combined with fractional CO2 for deeper acne scars, redness cleared within a month in half of 44 patients and lasted up to three months in 27%.[4] The laser redness timeline article looks at each of these in more detail.

Why does redness last longer for some people?

  • Treatment intensity: ablative treatment and stronger or denser settings generally mean a longer recovery.
  • A reactive background: if your skin already flushes easily or you have rosacea, tell the clinic, because the settings may need adjusting.
  • Aftercare products: fragrance, acids and new actives can irritate freshly treated skin.
  • Heat and sun: saunas, hot baths, hard exercise and unprotected sun while the skin is healing.

Brown or grey marks after treatment are a different problem. They are usually post-inflammatory hyperpigmentation rather than continuing redness, and in a review of 961 non-ablative fractional laser treatments they were more frequent in darker skin types.[5]

What helps redness settle after treatment?

  1. Cool the skin with a clean, cool compress for short periods. Do not put ice directly on treated skin.
  2. Wash with lukewarm water and a gentle cleanser; pat dry.
  3. Use a plain, fragrance-free moisturiser, or the product your clinic gave you.
  4. Protect from sun with shade, a hat and sunscreen once the clinic allows it.
  5. Pause retinoids, acids, scrubs and vitamin C serums until the clinic says you can restart.
  6. Avoid saunas, jjimjilbang, hot yoga, alcohol and very spicy food until the redness has settled, because they all bring blood to the face.
A folded pale blue cloth, a clear droplet shape and a small canopy arc arranged over a fading coral glow
Cool, moisturise and shade: simple care while redness settles.

When should I contact the clinic about redness?

Complications are uncommon but real. In the 961-treatment review, 7.6% of treatments led to a complication, most often acne-like breakouts (1.87%) and cold-sore outbreaks (1.77%), and all were temporary.[5] Contact the clinic if you notice:

  • Redness that spreads rapidly, worsens unexpectedly, or gets worse after it had started to improve.
  • New pain, crusting, yellow discharge or warmth.
  • Clusters of small blisters, especially around the lips: a possible cold sore.
  • New bumps or pustules in the treated area.
  • An itchy rash after starting a new aftercare cream.
  • Redness still clearly present after the time range the clinic gave you.
Two coral lines on a pale grid: one settles steadily downward, the other dips and then climbs again, circled by a slate ring
Redness that worsens after it started to improve is a reason to call the clinic.

Can I fly or sightsee with redness after a procedure?

Usually, if the skin surface is intact; ask the clinic if any area is open or crusted. Cabin air is dry, so apply moisturiser before boarding and during long flights, and keep sunscreen and a hat for days out. For fractional or ablative lasers, plan the session early in your stay so the clinic can check the skin before you leave.

Why is my face still red a day after a “no downtime” treatment?

Reactions vary even after low-energy treatments. Redness into the next day can come from sensitive skin, a stronger setting, a product used afterwards, or heat and alcohol the same evening. Mention it to the clinic before your next session.

Can I wear make-up over post-procedure redness?

Ask the clinic for its rule. Intact skin can usually be covered sooner than skin that was broken. After fractional laser or microneedling, wait until the clinic confirms the surface has closed.

References

Bibliographic records retrieved from PubMed (U.S. National Library of Medicine).

  1. Cho SB, Lee JH, Lee SH, Lee SJ, Bang D, Oh SH. Efficacy and safety of 1064-nm Q-switched Nd:YAG laser with low fluence for keloids and hypertrophic scars. J Eur Acad Dermatol Venereol. 2010;24(9):1070-4. PubMed: 20158584
  2. Uebelhoer NS, Bogle MA, Stewart B, Arndt KA, Dover JS. A split-face comparison study of pulsed 532-nm KTP laser and 595-nm pulsed dye laser in the treatment of facial telangiectasias and diffuse telangiectatic facial erythema. Dermatol Surg. 2007;33(4):441-8. PubMed: 17430378
  3. Wang YS, Tay YK, Kwok C. Fractional ablative carbon dioxide laser in the treatment of atrophic acne scarring in Asian patients: a pilot study. J Cosmet Laser Ther. 2010;12(2):61-4. PubMed: 20331341
  4. Huang L. A new modality for fractional CO2 laser resurfacing for acne scars in Asians. Lasers Med Sci. 2012;28(2):627-32. PubMed: 22618157
  5. Graber EM, Tanzi EL, Alster TS. Side effects and complications of fractional laser photothermolysis: experience with 961 treatments. Dermatol Surg. 2008;34(3):301-5; discussion 305-7. PubMed: 18190541