In short. The poor-candidate list for a shallower ablation: keloid tendency, a pigment disorder injury worsens, recent oral retinoid treatment, and hopes of tightening.
Key points
- Most of these are findings about skin behaviour rather than about general health.
- Someone with a well-controlled long-term condition may be perfectly suitable.
- What matters is how the skin in front of the clinician has healed before and whether pigment has moved after previous injury.
A lower-heat ablation is gentler than a heat-heavier one. That does not make it suitable for everyone, and the list of readers who should be steered elsewhere is specific rather than general. Most of it concerns how the skin heals and how it handles pigment, not how healthy the person is.
Skin that forms raised scars
A tendency to keloid or hypertrophic scarring is a reason to avoid resurfacing on the face, and a lower-heat plan does not change that. The concern is not only about depth. Skin that has produced a raised scar after a minor injury, a piercing or an earlier procedure is describing how it responds to a controlled wound. The same applies to skin that healed with a raised or spreading edge after a previous resurfacing, however long ago that was.
A pigment disorder that injury worsens
Melasma-type pigment, and a history of darkening after previous laser treatment, are the two commonest reasons a plan is changed or dropped. Removing the surface is an injury, and reactive skin can answer it by producing more pigment rather than less. That is more frequent and more stubborn in darker skin, and it can take months to settle.
Not a list of illnesses
Most of these are findings about skin behaviour rather than about general health. Someone with a well-controlled long-term condition may be perfectly suitable. What matters is how the skin in front of the clinician has healed before and whether pigment has moved after previous injury. That is an examination question, not a questionnaire question.
Healing that is slowed or suppressed
Recent oral retinoid treatment delays and complicates healing, and it carries a waiting period before resurfacing is considered. Immunosuppression, some medicines and poorly controlled diabetes slow the closure of an open surface. Active infection, an eczema or rosacea flare, or open lesions in the area are reasons to postpone rather than to abandon the idea.
Expectations the treatment cannot meet
The last category is not clinical and it matters just as much. A reader whose reason for treatment is a descended jawline, lost volume or a fold that survives gentle lifting is looking at the wrong class of treatment, and a lower-heat ablation reaches less of that than a heat-heavier one. So is a reader who needs the change to be invisible to other people.
Do not proceed while
- You take an oral retinoid, or you are inside the waiting period your clinician sets.
- There is active infection, an inflammatory flare or an open lesion in the area.
- Your skin darkened or scarred after a previous laser, peel or injury.
Being turned down for this treatment is not the same as being turned down for treatment. In most of these cases something else is a better answer, and a consultation that says so is more useful than a plan that does not.
Frequently asked questions
Can I have erbium resurfacing while taking an oral retinoid?
Not during treatment, and not immediately afterwards. Oral retinoid treatment delays and complicates healing, and it has a waiting period before resurfacing of any kind is considered at all. The same applies to topical prescription retinoids in the days before treatment. Tell the assessing clinician everything you take, including anything prescribed by another doctor.
Does a keloid tendency rule out resurfacing altogether?
On the face it is usually a reason to avoid resurfacing of any kind, and a lower-heat plan does not change that. The risk is not only about depth. Skin that has produced a raised scar after a minor injury, a piercing or a previous procedure is telling you how it answers a controlled wound, and the sensible response is to believe it.
Is melasma a reason to avoid erbium?
Often it is a reason to change the plan or to abandon it, because removing the surface is an injury and skin with a reactive pigment system can answer it by producing more pigment rather than less. A diagnosed pigment condition is usually treated medically first. Anyone told that pigment change cannot happen in their skin has not been assessed properly.
Risks & Limitations
- The surface is left open rather than sealed by heat, so pinpoint bleeding and oozing on the treatment day are expected; bleeding continuing beyond the first day or two needs review.
- Infection of open skin is the risk of the first days, which is why antiviral cover is ordinarily prescribed; increasing pain after the third day, spreading redness or fever needs same-day review.
- Pigment can shift in either direction: darkening is more common, more stubborn in darker skin, and can take months to settle, while lightening is uncommon and may not recover.
- A visible border can remain where treated skin meets untreated skin, and it is the one change on this list that time does not reliably soften.
- Scarring is uncommon but real, and no lower on a gentler plan; risk rises after infection, after treatment too deep for the skin, on thin skin, and in people who form raised scars.
- Each pass removes tissue that does not come back, so the number of times one area can be treated has a ceiling, and less residual heat means less tightening and less change in deep folds.
When to Seek Care
- Pain that increases after the third day instead of easing, or one patch much hotter and more swollen than the rest.
- Fever, spreading redness, or discharge from the treated area.
- Bleeding that continues beyond the first day or two, or that restarts after it had settled.
- A cold sore erupting across healing skin, which should be reported the same day.
- Blistering, dusky or grey patches, or a sore that is not crusting like the rest of the face.
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.