Management for this , 19 year old boy
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acne vulgaris treatment isotretinoin moderate severe
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Clinical Assessment
Diagnosis: Acne Vulgaris - Severe (Grade III-IV), Nodulocystic type
From the images:
- Multiple closed comedones (whitish papules)
- Active papules and pustules
- Several nodules and cysts (deep, fluctuant)
- Post-inflammatory hyperpigmentation (PIH)
- Early ice-pick and rolling scars visible on the cheek
- Bilateral facial involvement (cheeks, perinasal, chin)
In a 19-year-old male, this severity with early scarring is a clear indication for oral isotretinoin as first-line systemic therapy.
Management Plan
1. Systemic Therapy - ORAL ISOTRETINOIN (First-line)
This is the definitive treatment for severe nodulocystic/scarring acne.
| Parameter | Details |
|---|---|
| Indication | Severe nodulocystic acne with early scarring |
| Starting dose | 0.5 mg/kg/day for the first month (to reduce initial flare risk) |
| Maintenance dose | 0.5-1 mg/kg/day from Month 2 |
| Target cumulative dose | 120-150 mg/kg (reduces relapse risk) |
| Duration | ~5-6 months (e.g., 60 kg patient = ~7,200 mg total) |
| Administration | Take with a fatty meal to improve absorption |
Risk for this patient: Young adolescent males are at higher risk of isotretinoin-induced acne fulminans (rare severe flare). Starting at a lower dose (≤0.5 mg/kg/day) in Month 1 mitigates this. - Dermatology 2-Volume Set 5e, p. 731
Note on relapse: Male sex, young age, and short treatment duration are risk factors for acne recurrence after isotretinoin. Reaching the full cumulative dose is important. - Dermatology 2-Volume Set 5e, p. 731
2. Topical Therapy (Adjunct)
| Agent | Purpose |
|---|---|
| Topical retinoid (tretinoin 0.025-0.05% or adapalene 0.1-0.3%) | Comedolysis, prevents new lesions |
| Benzoyl peroxide (BPO) 2.5-5% wash or gel | Antibacterial, prevents resistance |
Avoid topical antibiotics as monotherapy. If needed, always combine with BPO to prevent C. acnes resistance.
3. Pre-treatment Workup & Monitoring
Before starting isotretinoin:
- Baseline labs: Fasting lipid panel (TG + cholesterol), LFTs (ALT/AST), CBC
- Repeat labs: At 1 month, then every 1-3 months
Isotretinoin raises triglycerides/cholesterol in ~20-50% of patients. Severe elevations requiring dose modification are rare but typically occur within the first 2 months. Elevated CK/rhabdomyolysis risk is higher in athletes - ask about exercise habits. - Dermatology 2-Volume Set 5e, p. 731
Counseling points:
- Mucocutaneous dryness is the most common side effect - use non-comedogenic moisturizer and lip balm
- Sun protection - SPF 30+ daily (skin fragility and photosensitivity)
- No waxing during treatment (skin fragility)
- Avoid concurrent tetracyclines (risk of pseudotumor cerebri/benign intracranial hypertension)
- Mood monitoring - while meta-analyses have not established a causal link between isotretinoin and depression, counsel patient and family to report mood changes
4. Adjunct / Procedural Treatments
For nodular/cystic lesions causing pain or risk of scarring:
- Intralesional triamcinolone acetonide 2-5 mg/mL (~0.1 mL per lesion) - rapid resolution of deep, tender cysts. Use cautiously in darker skin (PIH/atrophy risk). - Dermatology 2-Volume Set 5e, p. 731
For PIH (already visible in this patient):
- Azelaic acid 15-20% (topical, also has anti-inflammatory effect)
- Glycolic acid peels (20-70%) after acne is controlled
5. Post-Isotretinoin Maintenance
To reduce relapse (important given his young age and male sex):
- Topical retinoid ± BPO maintenance after completing the course
- Reassess in 6-8 weeks post-course
6. Scar Management (After Active Acne Resolves)
The early ice-pick and rolling scars visible here can be addressed once acne is controlled:
| Scar Type | Treatment |
|---|---|
| Ice-pick scars | Chemical reconstruction of skin scars (CROSS technique) with TCA, punch excision |
| Rolling scars | Subcision + filler, fractionated laser resurfacing |
| General resurfacing | Fractional CO2/Er:YAG laser, microneedling, dermabrasion |
Summary Algorithm for This Patient
Severe nodulocystic acne + early scarring in 19M
↓
Oral Isotretinoin 0.5 mg/kg/day × 1 month
↓
Increase to 0.5-1 mg/kg/day → target 120-150 mg/kg cumulative
↓
Adjunct: Topical retinoid + BPO
Procedural: IL triamcinolone for painful cysts
↓
Monitor: Lipids, LFTs at baseline, 1 month, then q1-3 months
↓
Post-course: Topical retinoid maintenance
Later: Scar treatment (laser/subcision/CROSS)
Key Sources:
- Dermatology 2-Volume Set 5e (Bolognia), p. 728-731
- Symptom to Diagnosis: An Evidence-Based Guide, 4th Ed, p. 4306
- Harriet Lane Handbook 23rd Ed, eTABLE 8.3
- Recent evidence: Zou et al. (2026) systematic review [PMID: 41877774] confirms that lower daily isotretinoin doses achieve comparable 24-week efficacy with better tolerability - supporting the strategy of starting at 0.5 mg/kg/day.
How to use sesderma azelac lotion
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Sesderma Azelac lotion how to use instructions azelaic acid
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how to use Sesderma Azelac lotion application instructions
Here is the complete guide for Sesderma Azelac Lotion, directly from the official Sesderma product page:
Sesderma Azelac Lotion - How to Use
What it Contains
- Azelaic acid - antibacterial, anti-inflammatory, comedolytic, anti-pigmentation
- Salicylic acid - exfoliates inside pores, unclogs comedones, reduces oiliness
Official Application Instructions
| Use Case | How to Apply | Frequency |
|---|---|---|
| Face, scalp, or body acne | Dampen a cotton pad with the lotion and apply to the affected area | Once daily |
| Ingrown hairs / blackheads / folliculitis | Apply directly onto the lesion | Day and night, until they disappear |
| Before shaving or hair removal | Apply a few hours before shaving, or immediately after hair removal | Daily |
| Inflammatory rosacea (with papules/pustules) | Apply over affected body parts after a shower | Once a day |
Step-by-Step Routine (for Acne - like the patient above)
- Cleanse the face with a gentle, non-comedogenic cleanser
- Pat dry - do not rub
- Dampen a cotton pad with the Azelac lotion
- Dab/wipe it over the acne-prone areas (cheeks, chin, nose, back - wherever needed)
- Let it absorb - do not rinse off
- Follow with a lightweight, oil-free moisturizer if needed
- In the morning, always finish with SPF 30+
Tips for Best Results
- Start once daily (evening preferred) if the skin is sensitive; build to twice daily if tolerated
- Azelaic acid is safe for long-term use and does not increase sun sensitivity the way glycolic/salicylic acid does - but SPF is still recommended
- Visible results for acne: 4-6 weeks; for PIH/hyperpigmentation: 6-12 weeks
- Do not use with harsh alcoholic toners or abrasive scrubs - this increases irritation
- Avoid eyes, mouth, and nostrils - if contact occurs, rinse with water
Applying to the Previous Patient (19M with facial acne + PIH)
Given his presentation, this lotion is well-suited as an adjunct to isotretinoin or as a standalone topical for mild-moderate cases:
- Apply to face (cheeks, jawline) using a cotton pad, once daily at night initially
- It will help with the active papules/pustules (azelaic + salicylic acids) and the PIH marks (azelaic acid blocks tyrosinase, reducing pigmentation)
- If on isotretinoin concurrently, monitor for dryness and reduce frequency if skin becomes irritated
- Always layer after cleansing and before moisturizer
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