Scalded Skin Syndrome

Overview – Scalded Skin Syndrome

Scalded Skin Syndrome (SSS), also known as Ritter’s disease in neonates, is a potentially serious dermatological emergency caused by exotoxins released by Staphylococcus aureus. It primarily affects infants and young children and is characterised by fever, irritability, and widespread erythema followed by exfoliation of the skin. The syndrome mimics scald burns, hence the name, and is a result of toxin-mediated cleavage within the epidermis. Prompt diagnosis and antibiotic treatment are essential to prevent complications.

Definition

Scalded Skin Syndrome is an acute skin condition caused by exfoliative toxins produced by toxigenic strains of Staphylococcus aureus, leading to superficial blistering and desquamation.

Aetiology

• Causative agent: Staphylococcus aureus
• Toxins involved: Exfoliative toxins A and B (epidermolytic toxins)

Pathogenesis

• Toxins specifically target desmoglein-1, a cadherin component of desmosomes
• → Disruption of desmosomal adhesion in the superficial epidermis
• → Acantholysis (loss of cohesion between keratinocytes)
• → Widespread epidermal exfoliation resembling a burn

Epidemiology

• Most commonly affects:
  • Children under 5 years
  • Particularly neonates due to immature renal clearance and skin immunity
• Rare in adults (typically immunocompromised or with renal failure)

Clinical Features

• Prodromal symptoms:
  • Fever
  • Irritability
  • Malaise
• Skin findings (24–48 hrs later):
  • Widespread erythematous, tender rash
  • Rapid progression to blistering and desquamation
  • Skin appears scalded or burn-like
  • Nikolsky sign positive: skin sloughs with gentle pressure
  • Perioral crusting and fissuring may be present
• No mucosal involvement (helps differentiate from Stevens-Johnson Syndrome)

Diagnosis

• Clinical: characteristic rash and age group
• Tzanck smear: may show acantholytic cells
• Skin biopsy (if required):
  • Superficial epidermal splitting at the granular layer
  • No inflammatory infiltrate or necrosis
• Blood culture or swab to isolate S. aureus (usually negative in skin but positive at distant primary site like nose or throat)

Management

• Hospitalisation (especially neonates/infants)
• IV Antibiotics:
  • First-line: Flucloxacillin, 1st-generation cephalosporins
  • Add clindamycin to suppress toxin production
  • If MRSA suspected: Vancomycin
• Supportive care:
  • Fluid and electrolyte management
  • Wound care and aseptic handling
  • Analgesia

Complications

• Secondary bacterial infection
• Fluid loss and dehydration
• Sepsis
• Scarring is rare – damage is limited to the superficial epidermis

Summary – Scalded Skin Syndrome

Scalded Skin Syndrome is a toxin-mediated blistering condition affecting predominantly infants and young children, caused by Staphylococcus aureus. Prompt recognition and treatment with IV antibiotics are essential to prevent severe complications such as dehydration and sepsis. For a broader context, see our Skin & Dermatology Overview page.