Acne Scars and Dark Spots: Why They Need Different Treatments

Updated October 2026 | Carolina Trim Clinic, Fort Mill, SC

Here is the distinction almost everyone misses: if you can feel it, it is a scar. If you can only see it, it is a mark. Flat brown or red spots left behind after a breakout are discoloration, not scarring, and they often fade on their own with time and sunscreen. Indented or raised areas are true scars, and those need treatments that remodel the skin itself. Spending money on the wrong category is the most common mistake we see. At Carolina Trim Clinic in Fort Mill, SC, we identify which you have before recommending anything.

Key Takeaways

• Run your finger over it. Smooth means discoloration. Texture means scarring.
• Brown marks are post-inflammatory hyperpigmentation. Red or purple marks are post-inflammatory erythema. Both are flat and both usually fade.
• Flat marks can take three to twenty four months to fade on their own, and sunscreen is the single biggest accelerator.
• True scars do not fade. They need resurfacing, which remodels collagen.
• Richly pigmented skin is more prone to post-inflammatory hyperpigmentation, which changes how aggressively treatment should be approached.
• Treat active acne first. Resurfacing an actively breaking out face can make things worse.

How to Tell Which You Have

Stand in good light with a mirror and look at your skin from an angle rather than straight on. Side lighting reveals texture that flat front-on lighting hides. Then run a fingertip over the area with your eyes closed.

Flat marks, meaning discoloration

• Post-inflammatory hyperpigmentation (PIH): Brown, tan or grey-brown flat patches where a spot used to be. More common and more persistent in medium to deep skin tones.
• Post-inflammatory erythema (PIE): Pink, red or purple flat marks, more common in lighter skin. These are lingering dilated blood vessels rather than pigment.

Both are the skin's memory of inflammation. Both are temporary in most cases, though temporary can mean a year or more.

True scars, meaning texture

• Atrophic scars are indented. These are the most common type from acne and include ice pick (narrow and deep), boxcar (wider with defined edges) and rolling (shallow, undulating).
• Hypertrophic or keloid scars are raised. These are more common on the chest, back and jawline, and they need a different approach entirely.

Treating Flat Marks

The honest first answer is time and sun protection. Both PIH and PIE fade, and UV exposure is what prolongs them. Every single day of unprotected sun exposure extends the timeline.

What helps:

• Daily broad spectrum sunscreen. Non-negotiable, and the step most people skip. Without it, the rest is largely wasted effort.
• Topical ingredients such as vitamin C, niacinamide, azelaic acid and prescription retinoids can speed the process.
• Treating current acne so you stop generating new marks.
• Patience. Three to six months of consistent care before judging progress.

A proper Alma IQ skin analysis is genuinely useful here, because it images pigment below the surface and can distinguish superficial from deeper discoloration, which changes the plan.

Treating True Scars

Indented scars need the skin remodeled. The goal is stimulating new collagen to lift the floor of the scar toward the surrounding surface.

Alma OPUS skin rejuvenation combines fractional plasma at the surface with radiofrequency heating deeper down. The surface action refines texture while the deeper heating drives collagen remodeling over following weeks. Most people need a series of around three sessions spaced four to six weeks apart.

Realistic expectations matter enormously here. Improvement is measured in degrees, not erasure. A meaningful result is scars that are noticeably shallower and less visible in normal lighting, not skin that looks like the acne never happened. Any clinic promising complete removal of deep scarring is overselling.

Some scar types also respond better to other approaches. Narrow ice pick scars often need techniques that treat them individually. Raised scars may need injections rather than resurfacing. A good consultation says so rather than defaulting to whatever device the clinic owns.

If You Have Medium to Deep Skin

This deserves its own section because the standard advice frequently fails people with richly pigmented skin.

• PIH is more common, darker and longer lasting. What fades in two months on fair skin may take a year.
• Aggressive treatment can backfire. Resurfacing that is too intense can trigger the very hyperpigmentation you came in to treat.
• Conservative and repeated beats aggressive and once. More sessions at gentler settings is usually the safer route.
• Pre-treatment preparation is sometimes recommended to calm pigment-producing cells before resurfacing.
• Ask about experience. Provider familiarity with your skin type matters more than which device is in the room.

None of this means you cannot be treated. It means the plan should look different.

What to Do Before Any Treatment

1. Get active acne under control first. Resurfacing an inflamed face can worsen both scarring and pigmentation.
2. Wear sunscreen daily for at least a month beforehand. Treating sun-stimulated skin raises pigment risk.
3. Pause retinoids and acids as directed before your appointment.
4. Photograph your skin in consistent light. Gradual change is hard to judge from memory.
5. Be clear about your timeline. If you have an event, say so, because resurfacing needs recovery.

Frequently Asked Questions

Will acne scars go away on their own?

True scars, meaning indented or raised texture, do not resolve on their own. Flat discoloration usually does fade, though it can take many months.

How long does post-inflammatory hyperpigmentation take to fade?

It varies widely, from a few months to two years. Daily sunscreen is the most effective thing you can do to shorten it.

Can skin resurfacing remove acne scars completely?

Realistically, no. Resurfacing improves the depth and visibility of scars, often substantially over a series of treatments, but complete erasure is not a realistic goal for deep scarring.

Is resurfacing safe for dark skin?

It can be, with conservative settings and an experienced provider. The manufacturer-cited study for Opus included skin types III and IV and reported no post-inflammatory hyperpigmentation. A patch test and a cautious plan are still sensible.

Can I treat scars while I still have active acne?

Usually not advisable. Getting breakouts under control first produces better results and avoids making things worse.

How many sessions will I need for acne scars?

A series of about three resurfacing sessions spaced four to six weeks apart is common, with gradual improvement over months as collagen rebuilds.

Find Out What You Are Actually Treating

The most valuable part of a consultation is often learning that what you assumed were scars are flat marks that will fade with sunscreen and time, or the reverse. Our skin assessments in Fort Mill, SC identify what you have before recommending treatment. We serve Fort Mill, Tega Cay, Rock Hill, Indian Land, Lake Wylie, and the greater Charlotte area.

If resurfacing is the right path, read our day by day recovery guide and our comparison of Opus Plasma, CO2 laser and microneedling.

Carolina Trim Clinic
230 Rockmont Dr, Fort Mill, SC 29708
Call 803-548-8746 (803-548-TRIM)
Tuesday to Friday 9am to 5pm, Saturday 9am to 3pm

Schedule your skin consultation today.

Sources

• Alma: Opus featuring Opus Plasma technology, including cited study data.

This article is for educational purposes only and is not a substitute for medical advice. Persistent acne and scarring should be evaluated by a qualified provider. Results vary by individual.