Skin and soft tissue infections

General infections

Skin and Soft Tissue Infection

• Cellulitis
  • Hand cellulitis
  • Facial cellulitis
  • Orbital cellulitis
• Erysipelas
• Lymphangitis
• Folliculitis
• Hidradenitis suppurativa
• Skin abscess
  • Anorectal abscess
  • Bartholin gland abscess
  • Pilonidal abscess
  • Scrotal abscess
• Necrotizing soft tissue infections
  • Necrotizing fasciitis
  • Necrotizing myositis
  • Necrotizing cellulitis
  • Fournier's gangrene
• Mycobacterium marinum

Look-A-Likes

• Sporotrichosis
• Osteomyelitis
• Deep venous thrombosis
• Pyomyositis
• Purple glove syndrome
• Tuberculosis (tuberculous inflammation of the skin)

Foot infection

Foot infection

Skin and Soft Tissue

• Cellulitis
• Erysipelas
• Abscess
• Puncture wound infection
• Paronychia
• Ingrown toenail (infected)
• Tinea pedis
• Infected wound / diabetic foot ulcer

Deep Tissue / Limb-Threatening

• Necrotizing soft tissue infections
  • Necrotizing fasciitis
  • Necrotizing myositis
  • Necrotizing cellulitis
• Gangrene
  • Dry gangrene
  • Wet gangrene
  • Gas gangrene
• Diabetic foot infection
• Trench foot

Bone and Joint

• Osteomyelitis
• Septic arthritis
• Septic bursitis

Look A-Likes

• Gout
• Pseudogout
• Charcot foot
• Peripheral artery disease
• Deep venous thrombosis
• Venous stasis dermatitis
• Sporotrichosis
• Contact dermatitis
• Calciphylaxis
• Lymphedema
• Erythema nodosum
• Stress fracture
• Reactive arthritis

Management

Antibiotic Dosing

Adult

• Levofloxacin Uncomplicated; 500mg PO/IV q24h x 7-10 days; Complicated; 750mg PO/IV q24h x 7-14 days
• Cefpodoxime 400mg q 12 h for 14 days
• Dicloxacillin 125-500mg PO q6h (1h before or 2h after meals)

Pediatric

• Ampicillin/Sulbactam 200mg ampicillin/kg/day IM/IV divided q6 hours
• Dicloxacillin <40 kg: 12.5-25mg/kg/day PO divided q6h; >40kg: 125-500mg PO q6h