Acne scars: Read in the order of your curiosity

Before concluding based on a single red spot

Acne scars: Depth of symptoms and remaining marks

Acne scar symptoms are divided into atrophic scars, where the skin is indented, and hypertrophic or keloid scars, which are firmly raised. Indented scars can be narrow and deep Icepick-type, boxcar-type with relatively distinct borders, and rolling-type that appears wide and wavy. On the other hand, red or brown changes that remain flat after acne may be post-inflammatory erythema or hyperpigmentation, and should be distinguished from scars where the structure has changed. If new acne continues to appear, or if there is pus, heat, rapid swelling, acne that looks like a scar grows rapidly, or bleeding or ulcers occur, a dermatology evaluation should come first.

Identification criteria by shape

First, distinguish between indentations, protrusions, and flat color changes

Do not refer to all marks as the same scar simply because they were where acne was; check the surface height, borders, color, and current inflammation.

Visible changesDistinguishing characteristicsNext action
Small holes that are narrow and deeply pittedPossible ice pick atrophic scarEvaluate depth and mixed types at a dermatology clinic
Round or oval indentation with visible bordersPossible boxcar atrophic scarRecord distribution using photos with consistent lighting
Wide and shallow indentation, skin appears wavyPossible rolling atrophic scarCheck shadows and range according to light direction
Firmly raised, itchy or painfulPossible hypertrophic scar or keloidEarly dermatology evaluation if it is growing
Surface is flat and red or brownPossible post-inflammatory erythema or hyperpigmentationDistinguish from scars for UV management and diagnosis
New pus, heat sensation, rapid swelling, or sudden growthActive acne, infection, or other skin acneDo not perform self-treatment; seek prompt medical evaluation

When to seek medical evaluation first

Changes requiring dermatological evaluation rather than being dismissed as scars

The following changes require confirmation of active inflammation, infection, or other skin acne.

  • If red, painful nodules or pus continue to form newly
  • If redness, heat, pain, or swelling spreads rapidly after a procedure or extraction
  • If there is pus accompanied by fever and body aches, or if the skin turns black
  • If raised acne grows rapidly or if bleeding and ulcers occur repeatedly
  • If the face or lips swell suddenly or if breathing becomes difficult

When new inflammation continues to occur even while managing marks and pitted scars

Criteria for identifying conditions that cause new scars and delayed recovery, rather than claiming that herbal medicine alone can fill scars

Flat red marksbrown marksand pitted or raised scars are distinguished first. Korean herbal medicine treatment focuses on factors that slow recovery, such as the recurrence of new inflammation, persistent redness, dryness, heat, and digestion or sleep status; procedures for scars where the skin structure has already changed are planned separately.

First, categorize by color and elevation

Distinguish whether it is a flat mark, if pitting is visible depending on the light, or if it is raised and widening.

Criteria for determining when to stop new inflammation before treating scars

If active nodules or pustules persist, the priority is to first reduce the rate at which new scars form.

Why skin recovery conditions are monitored between procedures

Dryness, heat, sleep, digestion, and the persistence of redness are considered together when adjusting prescriptions.

Treatment GoalWe first reduce the trend of increasing new inflammation and scars, and stabilize the skin's redness, dryness, and recovery conditions so that separate scar treatment can be planned.

Consult using 7-day acne scar photos and records of new acne
Close-up reproduction image showing a mix of gentle rolling scars, angular box-shaped scars, and narrow, deep indentations on the temples and upper cheeks
01 · First, observe the depth of the acneVarious indentations revealed depending on the direction of light

The width, boundary, and depth of indentations can vary even within a single area. We first reduce active inflammation and then plan dermatological procedures according to the scar type.

Educational reproduction images and simplified diagrams of the process do not represent actual patient photos or treatment results.

If you have had these experiences

For those confused about the types of marks remaining in the mirror or photos

First, distinguish between flat red/brown marks and indented or raised scars. Korean herbal medicine treatment focuses on factors that hinder recovery, such as recurring new inflammation, persistent redness, dryness, heat sensation, and digestion or sleep status, while procedures for scars where the skin structure has already changed are planned separately.

Those whose cheek indentations become more prominent depending on the light direction during morning makeup

When new nodules·pustules occur and marks continue to increase even during scar management

Those who have developed hard, itchy, or painful raised marks on the jawline, chest, or back

When redness, heat sensation, and dryness persist long after inflammation has subsided

Those who worry that flat red or brown marks after acne are scars

When inflammation recurs around the marks during times of fatigue, lack of sleep, or indigestion

Close-up reproduction image showing deep red nodules and post-inflammatory marks on the lower cheeks, jaw, and upper neck
02 · View with the main textDeep inflammation extending down to the jaw

If acne that feels wider and deeper than surface red spots persists, prioritize a dermatology evaluation before scarring occurs.

This is how we examine during the medical evaluation

Acne scars: depth of symptoms and remaining marks

Acne scar symptoms are divided into atrophic scars, where the skin is indented, and hypertrophic or keloid scars, which are firmly raised. Indented scars can be narrow and deep ice-pick types, or those with relatively distinct boundaries like boxcar type, or a mix of wide, wave-like rolling types. On the other hand, flat red or brown changes remaining after acne may be post-inflammatory erythema or hyperpigmentation, which must be distinguished from scars where the structure has changed. If new acne continues to appear, or if there is pus, heat sensation, rapid swelling, acne that looks like a scar grows rapidly, or if bleeding or ulcers occur, a dermatological evaluation is the first priority.

We first rule out infections and other types of skin acne

Check for new pus, heat sensation, rapid swelling, fever, sudden growth, bleeding, or ulcers to ensure dermatology evaluation is not delayed.

Keep separate records of indentations, protrusions, and color

Using photos taken under the same lighting, as well as touch, itching, and pain, we distinguish between atrophic scars, hypertrophic scars, and flat post-inflammatory pigment changes.

Continuously monitor new inflammation alongside daily changes

By examining the number and depth of new inflammation and its connection to menstruation, sleep, and digestion, we provide separate consultations on the goals of herbal medicine treatment and the sequence of structural scar treatment.

Reasons Why It Does Not Heal Easily

Acne scars: Why new acne continues to appear even after one lesion subsides

First, distinguish between flat red or brown marks and indented or protruding scars. Herbal medicine treatment focuses on factors that slow recovery, such as recurring new inflammation, persistent redness, dryness, heat sensation, and the state of digestion and sleep; procedures for scars where the skin structure has already changed are planned separately.

First, categorize by color and elevation

Distinguish whether it is a flat mark, an indentation visible depending on the light, or a protrusion that is widening.

Criteria for determining when to stop new inflammation before treating scars

Active nodules ·pustulesIf these continue, we first focus on reducing the rate at which new scars form.

Why we monitor skin recovery conditions between procedures

Dryness, heat sensation, sleep, digestion, and the persistence of redness are considered together when adjusting prescriptions.

Using photos as medical records

Acne scars: Compare 7-day changes using photos taken under the same lighting

Please prepare photos taken from the same lighting and distance, the onset timing of indentations, protrusions, or color changes, recent new inflammation with pus, pain, or itching, and your current history of dermatology medications and procedures for a consultation at Baekrokdam.

Icepick scars appear narrow but deep

These are indentations that look like small holes and extend deep into the skin. Depth should be evaluated through a skin examination rather than guessing based on surface area alone.

Boxcar scars show rounded indentations and visible borders

These are wider and more rounded or oval-shaped than icepick scars, and may have relatively distinct edges like walls.

Rolling scars create wide, wave-like shadows

These are wide, gentle depressions that make the skin look uneven or wavy depending on the direction of the light. Different types of scars may be mixed in the same area.

Medical illustration showing the difference in skin cross-sections of rolling, boxcar, and icepick indented scars
03 · View with main textReasons why the width and depth of scars vary

Even if all indentations look similar from the outside, the surface width and the depth within the dermis can vary, which may lead to different dermatology treatment plans.

Conceptual reference · American Academy of Dermatology: Acne scars

Herbal Medicine Pattern Identification for Acne Scars

Why Acne Scar Prescriptions Differ Based on Sebum, Heat, Dryness, and Menstruation

We examine whether there is significant residual red inflammation, if the skin is thin and dry leading to slow recovery, or if dark red marks and nodules are accumulating, Sebum· and whether digestion issues are linked to the emergence of new inflammation.

When red papules and a sensation of heat persist around the marks

We look for new papule· pustules and burning sensations among flat red marks. We check for flushing following upper-body heat, thirst, or stress. We increase the proportion of heat-clearing and detoxifying treatments to reduce residual heat and new inflammation.

When skin is thin and dry, and redness lasts long after irritation

We look for tightness, flaking, delayed recovery after procedures, and persistent red marks. We ask about lack of sleep, nighttime heat, dry mouth, and fatigue. We supplement body fluids and recovery power while lowering remaining deficiency heat.

When dark red marks and hard nodules persist in the same area for a long time

We look for deep marks, tenderness, and indentations left by acne that formed deep within the skin. Premenstrual exacerbation· We check for menstrual cramps, coldness in the hands and feet, and stagnation of circulation. We help recovery after inflammation by regulating the circulation of Qi and Blood and resolving blood stasis.

Changes to monitor during treatment

Changes to check in next week's photos

We first reduce the trend of increasing new inflammation and scars, and stabilize the skin's redness, dryness, and recovery conditions so that a separate scar treatment plan can be established.

Distinguishing between flat marks, indentations, protrusions, and active acne

Please take photos under the same lighting for 7 days and also note the 'distinction between flat marks, indentations, protrusions, and active acne'.

Number of new inflammations, duration of marks, and history of procedures

Please take photos under the same lighting for 7 days and also note the 'number of new inflammations, duration of marks, and history of procedures'.

Skin dryness, heat sensation, sleep, digestion, menstruation, and current medications

Please take photos under the same lighting for 7 days and also note 'skin dryness, heat sensation, sleep, digestion, menstruation, and current medications'.

Close-up educational image of an East Asian adult's cheek and jaw showing flat brown/grayish-brown spots remaining after acne has healed
04 · View with main textFlat brown hyperpigmentation remaining after acne

Distinguish brown marks from scars with changes in elevation, and record the influence of UV rays, extraction, and new inflammation.

At the crossroads of sebum, heat, and recovery speed

Acne accompanied by marks and scars is categorized into Upper-Body Wind-Heat, Yin Deficiency Internal Heat, Qi and Blood Stagnation, and Spleen-Stomach Damp-Heat

We examine whether there is significant residual red inflammation, if the skin is thin and dry leading to slow recovery, if dark red marks and nodules are accumulating, or if sebum and digestion issues are linked to new inflammation.

Pattern identification (Byeonjeung) is not about assigning a single constitution name to acne. The priority of the prescription changes depending on the connection between comedones, inflammation, heat sensation, sebum, delayed recovery, and menstruation, sleep, and digestion.

Upper Body Wind-Heat Type

When red papules and a feeling of heat persist around the marks

Changes observed in acne
We look for new papules, pustules, and a burning sensation among flat red marks.
Accompanying changes observed in the body
We check for flushing following upper body heat, thirst, or stress.
Prescription priority
We increase the proportion of heat-clearing and detoxifying treatments to reduce residual heat and new inflammation.
Yin deficiency internal heat type

When skin is thin and dry, and redness lasts long after irritation

Changes observed in acne
We look for tightness, flaking, delayed recovery after procedures, and persistent red marks.
Accompanying changes observed in the body
We ask about lack of sleep, nighttime heat sensations, dry mouth, and fatigue.
Prescription priority
We lower remaining deficiency heat while supplementing body fluids and recovery power.
Qi and Blood Stagnation Type

When dark red marks and hard nodules persist in the same area for a long time

Changes observed in acne
We look for deep marks, tenderness, and indentations left by deep-seated acne.
Accompanying changes observed in the body
We check for worsening before menstruation, menstrual cramps, cold hands and feet, and circulation stagnation.
Prescription priority
We help recovery after inflammation by regulating Qi and blood circulation and resolving blood stasis.
Spleen and Stomach Damp-Heat Type

When there is excessive oil, digestive blockage, and new pustules continue to form

Changes observed in acne
We look for recurring pustules, comedones over the marks, and oiliness.
Accompanying changes observed in the body
We ask about bloating, bad breath, constipation or sticky stools, and worsening after late-night snacks.
Prescription priority
We reduce the damp-heat in the spleen and stomach to stop the cycle of new inflammation increasing the number of marks.

Order of prescription adjustment

  1. Criteria for distinguishing between marks, indentations, protrusions, and new inflammation

    We do not mix the treatment goals for structural scars and active acne.

  2. Identifying the core issue: residual heat, dryness, stagnation, or damp-heat

    If sleep, digestion, and heat sensations also worsen during periods of slow skin recovery, these patterns are reflected in the prescription.

  3. Criteria for adjusting based on new acne and the recovery period

    The focus is not on whether scars are filled immediately, but on the number of new inflammations, redness, and persistent dryness.

Why consider Korean herbal medicine treatment now?

  • When new nodules or pustules appear and marks continue to increase even during scar management
  • When redness, heat sensation, or dryness persist for a long time after inflammation has subsided
  • When inflammation recurs around marks during times of fatigue, lack of sleep, or indigestion

What is evaluated in herbal medicine treatment for this condition

  • Distinguishing between flat marks, depressions, protrusions, and active acne
  • The number of new inflammations, the duration of remaining marks, and history of procedures
  • Skin dryness, heat sensation, sleep, digestion, menstruation, and current medications
01 · Acute Changes

First, distinguish infections from other types of acne

We check for new pus, heat sensation, rapid swelling, fever, sudden growth, bleeding, or ulcers to ensure that dermatology evaluations are not delayed.

02 · Recording Types

Record depressions, protrusions, and discoloration separately

Using photos taken under the same lighting, as well as texture, itching, and pain, we categorize them into atrophic scars, hypertrophic scars, and flat post-inflammatory pigment changes.

03 · Chronic Consultation

Continuously monitor new inflammations alongside changes in daily life

By examining the number and depth of new inflammations and their connection to menstruation, sleep, and digestion, we provide separate consultations on the goals of herbal medicine treatment and the sequence of structural scar treatment.

Things to prepare before the consultationPlease prepare photos taken from the same lighting and distance, the starting point of depressions, protrusions, or color changes, recent new inflammations with pus, pain, or itching, and your current dermatology medications and procedure history for your consultation.

Deep nodules, widely spreading infections, and rapidly forming scars must be checked at a dermatology clinic without delay. For already pitted scars, separate procedures should be considered; Korean herbal medicine treatment examines the patterns of recurring new inflammation and the state of sleep, digestion, and menstruation that slow down skin recovery.

Consult about acne scar progress

Acne Glossary

Additional information to know regarding acne scar guidance

You can check simple definitions before proceeding to detailed explanations.
Icepick ScarsAn icepick scar is a type of atrophic acne scar that appears as a narrow opening and a sharp, deep depression in the skin.Boxcar ScarsBoxcar scars are atrophic acne scars that are relatively wide with clearly defined edges.Rolling ScarsRolling scars are atrophic scars that appear as wide, gentle, wave-like depressions on the surface due to adhesions beneath the skin.Atrophic acne scarsAtrophic acne scars occur when the skin tissue does not sufficiently recover after inflammation, leaving the surface indented. They are different from flat red or brown marks.Post-inflammatory erythemaPost-inflammatory erythema refers to flat red or pink marks that remain where acne inflammation has subsided. It is different from pitted scars.Acne MarksAcne marks primarily refer to flat red or brown traces that remain where acne has subsided. They are different from pitted or raised scars.NodulesNodules are large, hard, and painful inflammatory acne that form deep within the skin. It is advisable to have them evaluated early as the risk of scarring may increase.Post-inflammatory hyperpigmentationPost-inflammatory hyperpigmentation refers to flat marks that remain brown or grayish-brown due to increased melanin after acne or irritation has subsided.Cystic AcneCystic acne is a common term for severe acne where inflammation grows deep in the skin, causing pain when touched and persisting for a long time. In actual medical practice, deep nodules and cystic changes are distinguished.

Frequently Asked Questions

Frequently Asked Questions about Acne Scars

What types of indented acne scars are there?

Narrow and deep icepick scars, boxcar scars with round or oval boundaries, and wide, gentle, wave-like Rolling-typeand may be mixed in one area.

Are brown acne marks also permanent scars?

Brown or red changes where the surface is flat post-inflammatory hyperpigmentationor erythema, and are different from structural scars. Please manage them after confirming the exact type.

Should I seek medical evaluation if a raised acne scar becomes itchy or grows larger?

Hypertrophic scars or keloids can be itchy or painful, and keloids may grow larger than the original acne. If they continue to grow or the diagnosis is uncertain, seek dermatology evaluation early.

Do I start scar treatment even if acne remains?

Since new inflammation can lead to additional scarring, acne is often controlled first. Determine the sequence of current medications and procedures during a skin evaluation.

Which procedure is best for pitted scars?

It depends on the type (icepick, rolling, or boxcar), depth, and skin tone. Since a combination of microneedling, lasers, fillers, or incisions may be used, an examination is required first.

Can herbal medicine treatment fill in scars?

Herbal medicine pitted scars cannot be promised to directly restore the structure. The goals are separated from structural scar treatment, and consultations include the cycle of recurring inflammation as well as accompanying discomforts such as redness, sleep issues, and digestion.

Evidence and Update Information

Dr. Choi Yeon-seung, a Korean medicine doctor, organized this content based on the official professional materials and disease-specific clinical data below, and updated the content on 2026-08-26.

  1. American Academy of Dermatology: Acne scars: Signs and symptomsBasis for distinguishing between icepick, rolling, and boxcar atrophic scars, hypertrophic and keloid scars, and post-inflammatory hyperpigmentation (which is not a scar)
  2. DermNet: Acne ScarringClinical characteristics of atrophic, hypertrophic, and keloid scars, post-inflammatory erythema and pigment changes, and the basis for medical evaluation of uncertain raised acne
  3. American Academy of Dermatology - Acne scars: Consultation and treatmentThis is the basis for determining combined procedures by scar type, prioritizing the control of active acne, and setting treatment expectations.
  4. American Academy of Dermatology - Laser treatmentThis is the basis for the range of scar improvement via laser, the risk of burns or post-inflammatory hyperpigmentation according to skin tone, and the need for UV protection.
  5. NHS - Acne complicationsThis is the basis for the treatment limitations where the selection of peeling, laser, punch techniques, or subcision cannot guarantee complete removal.