The result you see at day ten isn't the result
Subcision, laser resurfacing, and RF microneedling all work through collagen remodelling — a biological process that takes months. Nothing accelerates it, and evaluating it early is the most common way patients end up unnecessarily disappointed with a treatment that was going to work.
Knowing the arc in advance removes most of that. It also makes it easier to tell the difference between what's expected and what isn't.
Set expectations here
Week one is the worst it will look. Bruising and swelling after subcision, redness and peeling after CO2 — normal, expected, and part of how the treatment works.
Improvement is substantial, not complete. Rolling scars typically improve considerably. They generally don't disappear entirely, and a plan built on the expectation of total resolution sets up disappointment regardless of how well the procedure goes.
Both of those are worth knowing before booking rather than discovering afterward.
The subcision timeline
Day 1Treatment
Swelling begins
Procedure day
Subcision performed under local anaesthesia, biostimulator placed, red light to finish. Swelling starts within hours; bruising may begin appearing the same day. Tenderness is normal. Cold compresses, rest, and no alcohol, exercise, or heat.
Days 1–3Peak
Hardest days
Bruising and swelling at maximum
Peaks within seventy-two hours. Bruising can be substantial — dividing tissue beneath the skin means bleeding into that space, which is part of how it works. Keep avoiding anything that increases facial blood flow: hot showers, exercise, alcohol.
Day 3Massage starts
Do not skip
Begin the massage protocol
Massage distributes the biostimulator through the released space rather than letting it sit as a concentrated deposit. Skipping it is the most common reason a palpable nodule forms. Follow the specific schedule in your written aftercare — it's not optional.
Days 5–7Back out
Coverable
Comfortable in public
Most patients are fine by day five to seven, often with makeup over residual bruising. Swelling has largely settled. The skin may look much as it did before treatment at this stage — the work is happening beneath the surface and hasn't surfaced yet.
Weeks 2–4Quiet phase
Nothing visible yet
Early collagen synthesis
Acute inflammation resolved, fibroblast activity underway. Possibly some subtle lifting of the deeper depressions. This is the stage where patients most often worry it hasn't worked — it's too early to tell either way.
Month 2First signs
Direction visible
Improvement becomes noticeable
Around six to eight weeks, collagen formation starts producing visible change in scar depth and surface evenness. Usually the first point where you can see which way it's going, though not the final extent.
Month 3Clear result
Meaningful change
Result clearly established
Scar depth measurably reduced, texture smoother, previously tethered areas sitting flatter. Remodelling continues — comparing photographs from before treatment is more reliable at this point than memory.
Month 6Assessment
Judge here
Full result and next decision
Collagen stimulus has matured. This is when the session's result is properly assessed and whether further treatment would add anything is decided — a second subcision session, surface refinement, or nothing further.
When to Call Rather Than Wait
Most of what happens in week one is expected. These aren't.
Pain that increases after day two or three rather than settling. Discomfort should be improving by then, not worsening.
Spreading redness, warmth, or fever — possible infection, and time-sensitive.
Discharge from any treated area.
A discrete lump that persists past a few weeks, or appears later. Nodules after biostimulator are uncommon but recognised, and easier to manage early.
Skin that looks white, mottled, or dusky near a treated area — urgent, seek care immediately.
Any change in vision. Urgent.
Ordinary bruising, swelling, and tenderness in the first few days don't need a call. The list above does — and calling unnecessarily is always better than waiting on something that turned out to matter.
By treatment type
Subcision
5–7 days visible
Bruising and swelling peaking at days 1–3. Massage protocol from day three. Improvement from week six, assessed at month six.
CO2 laser
7–10 days, then pink
Redness and peeling for seven to ten days, then pink skin for two to four weeks. Strict sun protection throughout. Results develop over three to six months.
RF microneedling
2–3 days redness
Mild redness and swelling for two to three days. Improvement within two to four weeks, developing over two to three months. Usually several sessions spaced weeks apart.
Combined session
7–10 days
Subcision and laser recovery overlapping — bruising, swelling, and peeling at once. More disruptive up front, fewer separate recovery periods overall.
Sun Exposure Matters More Than People Think
Especially after ablative resurfacing, and especially in deeper skin tones.
Freshly treated skin is considerably more vulnerable to post-inflammatory hyperpigmentation — brown discolouration that can take months to fade and is more persistent in deeper skin tones.
That makes daily sun protection non-negotiable for several weeks after resurfacing, and makes timing worth considering: treatment before a beach holiday is a poor plan. More on device selection by skin tone.
Timing it well
Book late in the week so the most visible days fall over a weekend. That's the single most useful scheduling decision.
Leave a margin before events. Bruising is unpredictable in extent and duration. Several weeks of clearance before a wedding or anything photographed is sensible rather than cutting it fine.
Avoid heavy sun periods for ablative treatment, for the reasons above.
Take photographs before treatment. In the same light, from the same angles, without makeup.
People adapt to their own appearance within weeks, and at month three most patients genuinely cannot recall how it looked at the start. Photographs settle it. Without them, real improvement frequently goes unrecognised.
Continue learning
Frequently asked questions
How long does acne scar treatment take to work?
Results develop over three to six months after each session because they depend on collagen remodelling, which is a biological process that cannot be accelerated. Early improvement typically becomes visible between four and eight weeks. The result continues developing through month six, which is when it is properly assessed. Judging the outcome before month three consistently produces unnecessary disappointment.
What is the downtime after subcision?
Expect bruising and swelling for five to seven days, peaking in the first seventy-two hours. Bruising can be substantial — you are dividing tissue beneath the skin, and bleeding into that space is part of how the procedure works. Most patients are comfortable in public around day five to seven, often with makeup over residual bruising. Adding CO2 laser in the same session extends visible recovery to seven to ten days.
Why do I need to massage after the biostimulator?
Massage distributes the biostimulator evenly through the released space rather than allowing it to sit as a concentrated deposit, which reduces the risk of a palpable nodule forming. It is not optional, and skipping it is the most common reason nodules occur. Follow the specific schedule given in your written aftercare instructions.
What should I do if I feel a lump after treatment?
A small firm area in the first week or two is commonly swelling or bruising and settles. A discrete lump that persists beyond a few weeks, or one that appears later, should be assessed rather than monitored indefinitely. Nodules following biostimulator injection are uncommon but recognised, and they are more straightforward to manage early. Contact the practice rather than waiting for a scheduled review.
When should I contact the practice after treatment?
Contact promptly for pain that increases rather than decreases after day two or three, spreading redness or warmth, fever, discharge from a treated area, or any lump that persists or appears later. Also for changes in vision or severe unexpected pain. Ordinary bruising, swelling, and tenderness in the first few days are expected and do not require contact.
How many sessions will I need?
Many patients with rolling scars see substantial improvement after one to two sessions, though more extensive scarring may require additional treatment. Sessions are typically spaced to allow the previous result to develop before deciding whether more is warranted. Improvement is generally substantial rather than complete, and a plan built on the expectation of total resolution sets up disappointment.
When is the best time to schedule treatment?
Late in the working week is common, so that the most visible days fall over a weekend. It is also worth avoiding treatment within several weeks of an event where you would not want visible bruising or redness, and scheduling ablative resurfacing outside periods of heavy sun exposure, since treated skin is more vulnerable to pigmentary change.