Active Acne
Active acne may include blackheads, whiteheads, papules, pustules and inflamed spots. Painful nodules and cysts sit at the more severe end and require medical advice rather than routine cosmetic treatment alone.
Pulsar Advice & Knowledge Centre · Patient guide
Complete Acne Treatment & Acne Scarring Guide
Understand the difference between active acne, post-acne marks and true scarring—and how assessment, treatment sequencing, skin type, recovery and realistic expectations shape a safe plan.
Acne is not one single concern. Current breakouts, lingering red or brown marks and permanent changes in texture need different decisions. This guide explains where professional cosmetic treatment may help, where Pulsar’s pathways fit and when medical assessment should come first.
Active acne & congestion
Post-acne marks
Textural acne scarring
Approx. 18-minute guide
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Start by identifying the concern correctly
Active Acne, Post-Acne Marks and Scars Are Different
One person may have all three at the same time, but they do not necessarily respond to the same procedure or follow the same timetable.
Post-Acne Marks
Flat pink or red marks and brown or grey-brown pigmentation can remain after a spot has healed. They may gradually fade, but skin tone, sun exposure and repeated inflammation influence persistence.
True Acne Scarring
Scarring changes the skin’s structure. It may appear indented, rolling, sharply edged, tethered or raised. Scar type and depth strongly influence which treatment is realistic.
Why treatment is often sequenced
If new inflamed spots are still developing, they can create additional marks and scars. The first stage may therefore focus on controlling active acne, protecting the skin barrier and obtaining medical input before scar-focused procedures are intensified.
Understanding the condition
What Causes Acne to Develop?
Acne develops around the pilosebaceous unit—the hair follicle and its associated oil gland. Several processes may overlap, which is why a single product or treatment does not work identically for everyone.
- Excess sebum or oil production
- Build-up of cells that contributes to blocked follicles
- Inflammation within and around the follicle
- Changes involving acne-associated skin bacteria
- Hormonal influences, including puberty and adult hormonal change
- Genetic tendency, medication, friction, occlusion or unsuitable products
Acne is not caused by being unclean
Aggressive scrubbing, repeated squeezing and excessive use of harsh actives can damage the skin barrier and increase irritation. A calmer, consistent plan is generally more useful than trying to strip oil from the skin.
Scar assessment
Understanding Different Types of Acne Scarring
Most people have a mixture rather than one perfectly uniform scar type. Lighting, skin tension and palpation can reveal features that photographs alone may miss.
Ice-Pick Scars
Narrow, deep scars that extend into the skin. Their depth can make surface-only treatments less effective, and specialist medical procedures may be considered.
Boxcar Scars
Round or oval depressions with more defined edges. Shallow and deep boxcar scars may require different approaches.
Rolling Scars
Broad, wave-like depressions caused by tethering beneath the skin. Procedures that only treat the surface may not fully address deeper attachment.
Hypertrophic Scars
Raised scars caused by excess tissue formation. These are not treated in the same way as indented scars and may require medical assessment.
Keloid-Prone Scarring
Keloids extend beyond the original injury boundary. A personal or family tendency must be disclosed because cosmetic procedures can be unsuitable.
Post-Acne Marks
Flat red, pink, brown or grey-brown areas are not true textural scars. Their colour and cause determine whether pigment-focused, vascular, skin-renewal or time-led care is appropriate.
Quick comparison
How the Main Concerns Differ
| Concern | What it may look like | Initial priority | Important limitation |
|---|---|---|---|
| Active acne | Blocked pores, spots, pustules or inflammation | Reduce ongoing activity and prevent worsening | Moderate or severe acne needs medical input |
| Red or pink marks | Flat colour after inflammation | Calm inflammation, protect from UV and assess vascular change | Not every red mark is suitable for the same device |
| Brown or grey-brown marks | Flat post-inflammatory pigmentation | Prevent new inflammation and assess pigment safely | Darker skin tones need particular caution |
| Indented scars | Ice-pick, boxcar or rolling texture | Identify depth, edges and tethering | Complete removal cannot be promised |
| Raised scars | Firm tissue above the surrounding skin | Medical or specialist scar assessment | Standard resurfacing may be inappropriate |
Pulsar Chorley pathways
Where Professional Treatment May Fit
Pulsar does not use one standard protocol for every acne concern. The recommended pathway depends on current activity, mark colour, scar structure, skin tone, medication, previous treatment and recovery.
Advanced Acne Clearing Facial
May be considered for suitable mild breakouts, oiliness, congestion and blocked pores following assessment. It is not a replacement for medical treatment of moderate, severe, nodular or cystic acne.
NanoStar Y Active-Acne Pathway
NanoStar Y has a dedicated pathway for suitable inflammatory acne. At Pulsar Chorley, treatment is assessment-led and planned according to acne activity, skin type, medication, sensitivity and medical boundaries.
NanoStar Y Scar Pathway
A separate NanoStar Y resurfacing or fractional pathway may be considered for suitable acne scars, atrophic scars and uneven texture. Scar type, depth, skin tone and healing response determine suitability.
Post-Acne Mark Assessment
Brown, grey-brown, pink and red marks are assessed separately. A pigment-focused, rejuvenation, vascular, skincare-led or time-led approach may be recommended depending on the concern and clinic.
Other Skin Pathways
Microneedling, carbon facial, IPL, controlled exfoliation or another treatment may be more appropriate for a particular concern. Treatments may be sequenced rather than performed together.
Active acne and acne scarring use different NanoStar pathways
The manufacturer provides distinct protocols for inflammatory acne and for acne scars or atrophic scars. They are not interchangeable, and one appointment is not intended to treat every active lesion, flat mark and textural scar in the same way. The correct sequence is agreed after assessment.
Technology in context
How NanoStar Y Fits Active Acne and Scarring Treatment
Pulsar uses the German-engineered Asclepion NanoStar Y within separate consultation-led pathways for suitable inflammatory acne and suitable acne scarring. The pathway is determined by what is present in the skin rather than the device name alone.
- A dedicated pathway for suitable active inflammatory acne
- Assessment of scar type, depth and distribution
- A separate resurfacing or fractional scar pathway where appropriate
- Separate consideration of post-inflammatory pigmentation
- Fitzpatrick skin typing and recent tanning review
- Patch testing where required
- Standardised photography and progress reviews
Technology is only one part of the outcome
Protocol choice, handpiece, treatment technique, skin preparation, aftercare, acne activity, scar biology and the client’s healing response all matter. A stronger reaction does not automatically create a better result.
Assessment before treatment
What Happens at an Acne and Scarring Consultation?
The consultation establishes whether cosmetic treatment is appropriate and which concern should be prioritised first.
Discuss the History
We review when the acne began, current activity, previous treatments, prescription and non-prescription products, medication, allergies, healing history and your goals.
Assess the Skin
We distinguish active lesions, flat marks and true scars; consider scar type and depth; record skin tone, recent sun exposure and any tendency toward pigment change or raised scarring.
Identify Boundaries
We explain what cosmetic treatment may improve, what it is unlikely to change and whether a GP, pharmacist, dermatologist or other specialist should be involved first.
Plan and Patch Test
Where appropriate, we confirm the proposed pathway, risks, preparation, aftercare, expected course and review points. A patch test is completed when required.
Tell Pulsar about previous keloids or unusual scarring
A history of raised, spreading or difficult scars may change whether a cosmetic procedure is appropriate. Do not omit this information because the planned treatment appears minor.
Course planning
How Many Sessions Might Be Needed?
A consultation can suggest a starting plan, but no responsible assessment can guarantee an exact number of sessions or a fixed percentage improvement.
Active Acne Changes
Breakouts fluctuate with hormones, medication, stress, skincare, menstrual cycles and other factors. Progress is judged over time rather than from one unusually good or bad week.
Marks Fade Gradually
Post-inflammatory colour may improve slowly. Preventing new acne and protecting the skin from ultraviolet exposure are important alongside any professional treatment.
Scars Need Remodelling Time
Texture changes are reviewed after recovery and collagen-remodelling time. Treating again too soon can increase irritation without improving the final outcome.
A course is a framework—not a guarantee
Pulsar may recommend a course where repeated treatment is appropriate, but the plan can be adjusted, paused or stopped according to healing, response, new acne activity, medication changes or whether another approach becomes more suitable.
Before your appointment
How to Prepare for Treatment
Do
- Provide a complete list of medicines, supplements and topical products.
- Tell Pulsar about recent antibiotics, retinoids, steroids or prescription acne treatment.
- Protect the area from tanning and sunburn.
- Follow the product-pause instructions given for your selected treatment.
- Arrive with clean skin when requested.
- Report illness, infection, cold sores, broken skin or a significant flare before attending.
Don’t
- Do not pick, squeeze or deliberately irritate the treatment area.
- Do not use sunbeds or deliberately tan.
- Do not apply multiple strong exfoliants immediately before treatment.
- Do not conceal prescription acne medication or recent procedures.
- Do not attend with active infection, significant sunburn or open wounds.
- Do not copy another client’s skincare or treatment timetable.
Appointment day and recovery
What Happens During and After Treatment?
Review
Your skin, current acne activity, medicines, tanning status and recovery since the previous appointment are reviewed before treatment proceeds.
Prepare
The area is cleansed and protected as required. Appropriate eye protection and treatment-specific safety controls are used.
Treat
The agreed procedure is delivered using the selected products, device, handpiece, settings or technique for that pathway.
Immediate Response
Temporary warmth, redness, sensitivity or mild swelling can occur. The expected response differs between facials, laser, IPL and microneedling.
Recovery
The skin settles over the treatment-specific recovery period. Some pathways involve dryness, flaking, temporary darkening or a rough texture before improvement is assessed.
Review Progress
Photography, skin response, new acne activity and changes in colour or texture help determine whether the plan should continue or change.
Protect healing skin
Acne and Acne-Scarring Treatment Aftercare
Always follow the treatment-specific instructions provided at your appointment. The points below are general principles and do not replace your individual aftercare.
Keep Skin Calm
Avoid rubbing, scratching, picking or aggressive cleansing. Use only the soothing products approved for your treatment.
Avoid Irritation
Temporarily avoid excessive heat, strenuous exercise, steam, saunas and friction for the period advised.
Protect From Sun
Avoid deliberate tanning and follow the clinic’s sun-protection advice. UV exposure can worsen post-inflammatory pigmentation.
Pause Strong Actives
Restart retinoids, acids, scrubs, benzoyl peroxide or other active products only according to the instructions given.
Do Not Pick
Picking flakes, crusts or spots increases the risk of infection, delayed healing, marks and additional scarring.
Report Concerns
Contact Pulsar for worsening pain, blistering, spreading redness, discharge, marked swelling or delayed healing.
Informed decision-making
Risks, Side Effects and Reasons to Postpone
Expected Temporary Effects
Depending on the treatment, temporary redness, warmth, tenderness, dryness, flaking, swelling, tightness or darkening of treated marks may occur.
Less Common Complications
Blistering, burns, prolonged inflammation, infection, cold-sore activation, persistent redness, scarring and temporary or lasting pigment change are recognised risks.
Treatment May Be Postponed
- Recent tanning, sunburn or fake tan
- Open, infected or significantly irritated skin
- An active cold sore in or near the area
- A medicine or health change requiring review
- Incomplete recovery from another procedure
- A significant acne flare requiring medical care
Contact Pulsar Promptly For
- Worsening pain or heat
- Blistering, weeping or discharge
- Spreading redness or swelling
- Unexpected pigment or texture change
- Delayed healing
- Any reaction that concerns you
Skin tone and pigment safety
Acne Marks and Scarring in Darker Skin Tones
Darker skin tones can develop more noticeable or persistent post-inflammatory hyperpigmentation after acne—and may also develop pigment change after an unsuitable or overly aggressive procedure.
Identify Colour and Depth
Brown or grey-brown marks, redness and true texture are assessed separately rather than treated as one concern.
Use Appropriate Caution
Technology, wavelength, settings, treatment intensity, test areas and recovery time must reflect the individual skin and concern.
Control Inflammation and UV
Avoiding picking, irritation and tanning is particularly important where the skin readily develops post-inflammatory colour change.
More inflammation can mean more pigmentation
A dramatic immediate reaction is not the goal. Conservative planning and proper recovery may be safer and more useful than pursuing the strongest possible visible response.
Medication and skincare
Can Acne Medicines Affect Treatment?
Yes. Prescription tablets, topical medicines and active skincare can influence sensitivity, inflammation, healing and procedure choice.
Always Disclose
- Current and recent prescription acne medication
- Oral or topical retinoids
- Antibiotics and photosensitising medicines
- Steroids or immune-modifying medication
- Benzoyl peroxide, acids and exfoliants
- Recent peels, microneedling, laser or injectable procedures
Do Not Stop Medication Yourself
Pulsar may ask you to pause a cosmetic product, postpone treatment or obtain guidance from the prescribing clinician. Do not stop a prescribed medicine solely to qualify for a cosmetic procedure without appropriate medical advice.
There is no universal waiting period for every medicine and procedure
The correct decision depends on the medication, dose, treatment type, skin condition, healing history and current clinical guidance. Pulsar will assess the individual circumstances rather than applying one internet rule to everyone.
Realistic expectations
What Might Improvement Look Like?
Possible Signs of Progress
- Fewer or less frequent suitable breakouts
- Reduced congestion or oiliness
- Gradual fading of selected post-acne marks
- Softer-looking scar edges
- More even-looking texture
- Reduced contrast between scars and surrounding skin
What Treatment Cannot Promise
- Permanent prevention of every future spot
- Complete removal of every scar
- An identical response across all scar types
- A fixed percentage improvement
- Completion in one session
- No risk of temporary or lasting side effects
Photography should be consistent
Lighting, angle, distance, makeup and skin hydration can make scars appear different. Progress photographs are most useful when conditions are standardised and combined with an in-person assessment.
Medical boundaries
When Should Acne Be Assessed Medically?
Cosmetic treatment does not diagnose the underlying cause of acne or replace appropriate medical care.
Speak to a GP, pharmacist or dermatologist when appropriate
- Acne is moderate, severe, painful, nodular or cystic.
- There is rapid worsening, spreading inflammation or suspected infection.
- Scarring is developing despite over-the-counter care.
- Acne is persistent, treatment-resistant or suddenly begins in adulthood.
- There are other possible hormonal symptoms.
- Acne is substantially affecting confidence, mood or daily life.
- You are pregnant, breastfeeding or planning pregnancy and need medicine advice.
- You are unsure whether a lesion is acne.
Frequently asked questions
Complete Acne & Acne Scarring FAQs
Select a question to reveal the answer.
Are active acne, post-acne marks and acne scars the same?
No. Active acne involves current blocked pores, spots or inflammation. Post-acne marks are flat colour changes left after spots settle. True scars involve a lasting change in skin texture, such as indentations or raised tissue.
Should active acne be treated before acne scarring?
Often, yes. Continuing breakouts can create new marks and scars, so the first priority may be controlling active acne before intensifying scar-focused treatment. The correct sequence depends on assessment.
Can acne scars be completely removed?
Complete removal cannot be guaranteed. Suitable treatment may soften the appearance of scars, improve texture or make colour differences less noticeable, but outcomes depend on scar type, depth, skin response and the treatment used.
How many acne or acne-scarring treatments will I need?
There is no single number for everyone. Treatment frequency and course length depend on whether the concern is active acne, pigmentation, redness or true scarring, as well as severity, skin type, recovery and response.
Can NanoStar Y treat both active acne and acne scarring?
NanoStar Y provides separate treatment pathways for suitable inflammatory active acne and for suitable acne scars or atrophic scars. At Pulsar Chorley, the appropriate pathway is selected only after assessment because active lesions, post-acne colour and textural scarring require different protocols. Moderate, severe, nodular or cystic acne may require medical assessment.
Can darker skin tones have acne-mark or acne-scarring treatment?
Many darker skin tones may be suitable for selected treatments, but the risk of post-inflammatory pigment change requires careful assessment, conservative planning, sun protection and appropriate aftercare.
Can I have treatment while taking acne medication?
Medication must be disclosed before treatment. Some prescription or topical acne medicines can affect sensitivity, healing or treatment suitability. Pulsar may postpone treatment or request medical guidance.
Can I combine microneedling, laser, IPL and facials?
Sometimes treatments can be sequenced within a wider plan, but performing too many procedures together can increase inflammation and make reactions harder to interpret. Pulsar will confirm safe intervals for the selected treatments.
Will treatment make my acne worse before it gets better?
Temporary changes can occur after some procedures, but significant worsening should not automatically be dismissed as purging. Contact Pulsar if inflammation, pain or breakouts increase unexpectedly.
When should acne be assessed medically?
Seek medical advice for moderate or severe inflammatory acne, painful nodules or cysts, sudden worsening, signs of infection, significant scarring, treatment-resistant acne or substantial effects on wellbeing.
Building the next patient-advice library
Supporting Acne Guides Coming Next
This cornerstone guide will be supported by focused articles that answer one patient question in greater detail.
Active Acne, Marks or Scars?
A closer visual and practical comparison of the three main concerns.
Understanding Acne Scar Types
Ice-pick, boxcar, rolling, hypertrophic and keloid-prone scars.
NanoStar Y for Active Acne & Scarring
How the separate inflammatory-acne and scar-focused pathways differ.
Preparation & Aftercare
Products, medicines, tanning, healing and when to ask for help.
Acne Treatment for Skin Tones
Post-inflammatory pigmentation, caution and individual planning.
When Acne Needs Medical Care
Recognising the limits of cosmetic treatment and seeking appropriate help.
Pulsar Laser Studio · Chorley
Start With a Professional Acne Assessment
Tell us whether your main concern is current breakouts, lingering colour, uneven texture or a combination. We will explain the suitable next step—or advise when medical assessment should come first.