In short. The grid of pinpoint bleeding, the sunburnt peak, the bronzing and sandpaper flaking, the pink weeks and the gap before the next session, repeated every time.
Key points
- The surface is usually settled enough for make-up within roughly a week, and the flaking phase is largely over by then.
- Pinkness lasts longer, often several weeks, and is more persistent in fair and sensitive skin.
- What makes a course different is that this week is not a one-off: it belongs to every session.
What patients cancel, change their plans over, or simply fail to expect is not the session day and not the result. It is the week afterwards, and the fact that it comes round again for every session in the course. Understanding that week in detail is what makes a course manageable rather than resented.
Session day
The area is numbed beforehand, so the session itself is not the difficult part. Afterwards the skin is warm and tight, with a visible grid of pinpoint bleeding at the treated points and a redness that makes the pattern obvious. Most people describe the sensation as a bad sunburn. Oozing is minimal compared with a fully ablative treatment, because the bridges are intact.
The peak, and the flaking that follows
Redness and swelling peak over the first day or two, and the skin feels dry and tight. Then the phase people are least prepared for: as the treated columns turn over, the surface develops a bronzed, sandpapery texture and begins to flake in fine pieces. It does not lift away in a sheet. Patients who were expecting sheet peeling often read the flaking as a complication, when it is the pattern behaving exactly as it should.
The week, repeated
The surface is usually settled enough for make-up within roughly a week, and the flaking phase is largely over by then. Pinkness lasts longer, often several weeks, and is more persistent in fair and sensitive skin. What makes a course different is that this week is not a one-off: it belongs to every session.
The weeks between sessions
The skin is still remodelling and remains more sun-sensitive than usual, so the period between sessions carries restrictions rather than being time off. Sun protection is strict and continuous. Skin care follows the clinic's written instructions rather than whatever is being recommended elsewhere. Waxing, exfoliating products and other treatments that add injury are avoided. If the interval has to move, it is better moved than compressed, because the gap is what the next session is planned against.
What to arrange
For the first day or two, plan on not being seen, and arrange the practical things beforehand: someone to bring you home, food that needs no preparation, and the clinic's out-of-hours contact kept where you can reach it without hunting for it. If the plan is a course, arrange the whole sequence rather than the first session.
Contact the clinic the same day if
- Pain is increasing after the first day or two instead of settling.
- One patch is much redder, hotter or more swollen than the rest, or there is discharge that smells.
- A cold sore starts, or you develop a fever or blistering that was not there at the first dressing change.
The sandpaper days are not a complication and not a reason to avoid a course. They are the price of the pattern, and they are predictable, which is what makes them manageable.
Frequently asked questions
Why is fractional recovery flaking rather than sheet peeling?
Because the untouched bridges between the columns are already closing while the treated columns turn over. There is no continuous sheet of dead surface to lift away, so what appears instead is a bronzed, sandpapery texture that flakes in fine pieces over several days. Patients expecting sheet peeling often read the flaking as a complication, when it is the pattern behaving as it should.
How long will I be pink after each session?
Longer than the flaking lasts. The surface is usually settled enough for make-up within roughly a week, while pinkness commonly persists for several weeks and is more persistent in fair and sensitive skin. On its own that is not a complication. It does need to be planned for if the weeks after a session involve being photographed or on camera.
Can I go back to work during the sandpaper days?
To work from home, often after the first day or two; to be seen in public, not comfortably. The skin is visibly patterned and then visibly flaking, and cover is usually not possible until the surface has settled. The practical planning assumption is about a week away from being seen, and that week belongs to every session in the course.
Risks & Limitations
- Each session leaves the treated skin patterned, warm and red for days, then flaking in fine pieces rather than peeling in a sheet, with pinkness that can persist for several weeks.
- Pigment change in both directions: darkening after a session is common and usually settles, while lightening is uncommon and may not recover.
- Infection while the treated columns are open, which is why antiviral cover is ordinarily prescribed; a cold sore starting across healing skin needs same-day review.
- A visible border where treated skin meets untreated skin, more likely when the two sides have been treated at different depths or in different sessions.
- Delayed healing in one patch, which is the situation that most often precedes a scar, and acne flare in the weeks after a session.
- The change from any one session is deliberately small, a course is usually required, and the improvement is long-lasting rather than permanent.
When to Seek Care
- Increasing pain after the first day or two instead of settling, or one patch much hotter and more swollen than the rest.
- Fever, spreading redness, or discharge from the treated skin.
- A cold sore starting across healing skin, which should be reported the same day.
- One patch healing far more slowly than the others, or a sore that is not crusting like the rest.
- Blistering, or dusky or grey patches appearing in the treated area.
References & Further Reading
- American Society for Laser Medicine and Surgery (ASLMS) — patient information on laser and energy-based treatment
- American Academy of Dermatology (AAD) — guidance on laser resurfacing and post-inflammatory hyperpigmentation
- National Institute for Health and Care Excellence (NICE, UK) — relevant guidance on skin treatments
- Cochrane Library — systematic reviews in skin resurfacing and scar management
This page is patient education, not medical advice, and it does not cite individual studies. Discuss your own case with a qualified clinician. To arrange an assessment at Chongqing West District Hospital, see Contact & Consultation.