Lesson 1Basic physics and tissue interaction of CO2 ablative fractional lasers (ablation, coagulation, thermal zone)Dis part review CO2 laser physics and how e work with body tissue, like wavelength, water take-up, cut and cook dynamics, small heat zones, and how pulse shape depth, heat damage, and results.
CO2 wavelength and water absorption basicsAblation versus coagulation balanceMicrothermal zones and lattice patternsThermal relaxation time and pulse designDepth of injury and collagen remodelingLesson 2Evidence base and guidelines for fractional CO2 in acne scarring (efficacy, comparative data with other modalities)Dis part sum up clinic proof for fractional CO2 on acne scars, like how good e be, by scar type, how long e last, compare with others, and key advice from experts.
Key randomized and prospective trialsOutcomes by scar type and skin typeDurability of results and retreatment needsComparisons with erbium, RF, and microneedlingGuideline and consensus recommendationsLesson 3Treatment planning: number of sessions, intervals, cumulative approach, and combination therapiesDis part explain how to make personal treatment plan, like how many sessions, space, build-up way, and mix with other scar treatments, balance good result, safety, cost, and patient hope.
Setting realistic goals for scar improvementDetermining number of sessions and intervalsCumulative treatment concepts and endpointsCombining CO2 with microneedling or RFIntegrating fillers, PRP, and subcisionLesson 4Patient selection, contraindications, and risk factors specific to CO2 (skin type considerations, isotretinoin interval, active acne, keloid risk)Dis part review best patients and no-go for fractional CO2, stress skin type, isotretinoin time, active acne, keloid chance, body sickness, and drug use to cut bad results.
Assessing scar type and severity patternsFitzpatrick skin type and PIH riskIsotretinoin timing and acne controlHistory of keloids and abnormal scarringSystemic illnesses and drug interactionsLesson 5Practical technique: anesthesia options (topical, local blocks), technique for uniform coverage, overlapping strategy, periocular and perioral modificationsDis part cover real do fractional CO2, like numb choices, eye safe, grid line, overlap way, smoke control, and change method for eye and mouth area.
Topical and injected anesthesia optionsMarking, positioning, and eye protectionUniform coverage and overlap techniquePeriocular and perioral safety tweaksSmoke evacuation and room safetyLesson 6Parameter selection rationale: energy density (mJ/MTZ), pulse modes, density/coverage percentage, number of passes and spacingDis part explain pick and change CO2 settings, like energy per spot, density, cover, pulse types, passes, space, fit to scar deep, body part, skin type for safe good work.
Energy per MTZ and depth of ablationDensity, coverage, and overlap limitsPulse modes and stacking strategiesAdjustments for skin type and regionTest spots and titration over sessionsLesson 7Expected downtime and postprocedure care: wound care, dressings, topical agents, sun protection, timeline of healingDis part outline how long rest, wound change, and after care plan, like clean, cover, creams, stop infection, no sun, and tell patient healing time.
Typical healing timeline day by dayCleansing routines and wound hygieneUse of occlusive dressings and emollientsTopical antibiotics, steroids, and antiviralsSun avoidance, SPF, and pigment controlLesson 8Complications specific to CO2: prevention and management of infection, prolonged erythema, hypertrophic scarring, and postinflammatory hyperpigmentation (PIH)Dis part detail CO2 special troubles, like infection, long redness, thick scar, PIH, with how to stop, spot early, and treat with proof.
Bacterial, viral, and fungal infectionsProlonged erythema and telangiectasiaHypertrophic scarring and contracturePostinflammatory hyperpigmentation careHypopigmentation and textural changes
