Management of Extensive Erosive Skin Lesions
Immediately consider Stevens-Johnson syndrome/toxic epidermal necrolysis (SJS/TEN) as the primary diagnosis requiring urgent intervention, and transfer patients with >30% body surface area (BSA) involvement to a specialized burn center for optimal mortality reduction. 1
Initial Assessment and Diagnosis
When confronted with extensive erosive skin lesions, rapidly assess the percentage of BSA with epidermal detachment or necrosis to differentiate:
- SJS: <10% BSA epidermal detachment with widespread purple/red macules or flat atypical targets
- SJS/TEN overlap: 10-30% BSA involvement
- TEN: >30% BSA involvement 2
Critical pitfall: Do not confuse with erythema multiforme major (EMM), which presents with typical target lesions starting on acral surfaces, patients remain constitutionally well, and does not progress to SJS/TEN 2. Also exclude erosive pustular dermatosis, which is chronic, affects elderly patients with sun-damaged skin, and lacks the acute systemic toxicity of SJS/TEN 3, 4.
Immediate Management Algorithm
1. Stop the Culprit Drug Immediately
This is the single most important intervention to halt disease progression 1.
2. Fluid Resuscitation
- Use the formula: body weight (kg) × % BSA epidermal detachment to calculate fluid requirements over the first 3 days
- Avoid overaggressive resuscitation: SJS/TEN requires LOWER volumes than burn patients using the Parkland formula; excessive fluids cause pulmonary, cutaneous, and intestinal edema 1
- Begin fluid resuscitation when BSA involvement reaches 15% 1
3. Transfer Criteria to Burn Center
Transfer is indicated for 1:
- TEN with >30% BSA epidermal loss
- Clinical deterioration
- Extension of epidermal detachment
- Subepidermal pus or local sepsis
- Wound conversion and/or delayed healing
- Children/young people with >10% BSA involvement, comorbidities, or requiring ventilation 2
The burn unit provides unique expertise combining intensive care support for failing organs with specialized skin care, debridement, and reconstruction capabilities 5.
Wound Management Protocol
Local Wound Care 1:
Cleansing:
- Irrigate gently with warmed sterile water/saline or chlorhexidine (1:5000)
- Perform regularly on both wounds and intact skin
Topical Applications:
- Apply greasy emollient (50% white soft paraffin + 50% liquid paraffin) over entire epidermis including denuded areas
- Consider aerosolized formulations to minimize shearing forces
- Avoid preparations with sensitizers or irritants
Antimicrobial Strategy:
- Apply topical antimicrobials to sloughy areas only (not prophylactically)
- Consider silver-containing products/dressings, but limit use if extensive areas are treated due to absorption risk
- Guide antibiotic choice by local microbiological advice
Blister Management:
- Leave detached epidermis in situ as a biological dressing
- Decompress blisters by piercing and expressing/aspirating fluid
Dressing Selection:
- Primary layer: Nonadherent dressings (Mepitel™ or Telfa™) on denuded dermis
- Secondary layer: Foam or burn dressing to collect exudate (Exu-Dry™)
Advanced Burn Center Interventions 1:
When conservative measures are insufficient:
- Remove necrotic/loose infected epidermis under general anesthesia
- Clean wounds with topical antimicrobials (betadine or chlorhexidine)
- Consider Versajet™ debridement
- Achieve physiological closure with Biobrane/allograft/xenograft skin in early presentation with noninfected, large confluent areas
Nutritional Support
SJS/TEN creates a hypermetabolic state with energy expenditure approximately twice the predicted resting value, plus massive albumin and protein losses from blister fluid 1.
Nutritional Protocol 1:
- Initiate early to support metabolic disturbances and promote healing
- Prefer enteral over parenteral nutrition to reduce peptic ulceration and limit gut bacterial translocation
- Use nasogastric feeding with silicone tube when buccal mucositis precludes oral intake
- Catabolic phase: Deliver 20-25 kcal/kg daily
- Anabolic recovery phase: Provide 25-30 kcal/kg daily
Infection Surveillance
Monitor for 1:
- Confusion, hypotension, reduced urine output, decreased oxygen saturation
- Increased skin pain (may indicate cutaneous infection)
- Rising C-reactive protein and neutrophilia
- Monoculture on swabs from multiple sites (previously showing mixed growth) indicates predominant organism and increased invasive infection risk
- HSV reactivation in slow-healing eroded/vesicular areas, particularly genital and oral sites
Key Clinical Distinctions
If the presentation is chronic rather than acute, particularly in elderly patients with sun-damaged scalp skin, consider erosive pustular dermatosis of the scalp (EPDS) instead 3, 4, 6. This requires entirely different management with topical corticosteroids (clobetasol), tacrolimus 0.1% for maintenance, or photodynamic therapy 3, 7. However, EPDS can harbor nonmelanoma skin cancer—biopsy any morphologic change such as nodularity or rapid growth 8.
The mortality difference is critical: TEN in adults carries 17-29.5% mortality 2, while EPDS is a chronic condition without acute mortality risk but potential for severe morbidity including bone erosion in extreme cases 9.