› First-line: IV beta-lactam
› Cefazolin IV preferred over nafcillin/oxacillin
› 25 to 33 mg/kg/dose IV every 8 hours (pediatric)
› 1 to 2 g IV every 8 hours (adult)
› Fewer infusion-related adverse effects than nafcillin
› Class I recommendation for anti-staphylococcal coverage
› Oxacillin or nafcillin IV if cefazolin unavailable
› Nafcillin 150 to 200 mg/kg/day divided every 6 hours (pediatric)
› Phlebitis risk requires adequate dilution and slow infusion
› MRSA coverage indications
› Vancomycin IV
› 15 mg/kg/dose IV every 6 hours (pediatric; adjust to target AUC/MIC)
› 15 to 20 mg/kg IV every 8 to 12 hours (adult)
› Trough or AUC-guided monitoring per institutional protocol
› Indication: high local MRSA prevalence, prior MRSA colonization, failure of beta-lactam
› Clindamycin: not recommended
› High resistance rates in SSSS isolates (52 to 85%)
› Systematic review: no outcome benefit despite anti-toxin theory
› Oral step-down when clinically improved
› Cephalexin PO
› 25 to 50 mg/kg/day divided every 6 to 8 hours (pediatric)
› 500 mg PO every 6 hours (adult)
› Dicloxacillin PO
› 25 mg/kg/day divided every 6 hours (pediatric)
› 500 mg PO every 6 hours (adult)
› Duration: 7 to 10 days total course in uncomplicated cases
› IV fluid resuscitation
› Crystalloid IV replacement for burn-like losses
› Lactated Ringer's or 0.9% NaCl
› Maintenance plus estimated losses from denuded skin
› Electrolyte correction
› Sodium and potassium monitoring daily
› Adjust based on ongoing losses
› Transition to oral fluids when perioral pain improving
› Cool liquids and soft foods better tolerated
› Avoid acidic or hot foods
› Skin barrier protection
› Gentle non-adherent dressings over denuded areas
› Avoid adhesive dressings on fragile skin
› Petrolatum gauze or silicone-based wound dressings
› Skin care technique
› Minimal friction during bathing and dressing changes
› Emollient application to intact but erythematous areas
› Temperature management
› Warm environment to compensate for heat loss
› Particularly critical for neonates
› Primary infection source treatment
› Conjunctivitis: topical antibiotic eye drops
› Tobramycin or polymyxin-trimethoprim ophthalmic drops
› Impetigo lesions: wound care and systemic antibiotic covers both
› Perianal or periumbilical: local hygiene and systemic coverage
Analgesics and supportive agents
› Pain management
› Acetaminophen
› 15 mg/kg/dose PO or PR every 4 to 6 hours (pediatric)
› 500 to 1000 mg PO every 6 hours (adult)
› Maximum 75 mg/kg/day or 4 g/day
› Ibuprofen when renal function normal
› 10 mg/kg/dose PO every 6 to 8 hours (pediatric)
› 400 to 600 mg PO every 6 to 8 hours (adult)
› Opioid analgesics for severe skin pain
› Morphine 0.1 mg/kg IV PRN for procedural pain (pediatric)
› Careful titration to respiratory status
› Agents to avoid
› Corticosteroids: contraindicated
› Immunosuppressive; may worsen infection
› Can accelerate skin breakdown
› IVIG: not routinely recommended
› Recent evidence associates use with prolonged hospitalization
› Reserve for refractory or immunocompromised cases under specialist guidance
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