Impetigo

Definition

Impetigo is a superficial bacterial skin infection caused most commonly by Staphylococcus aureus or Streptococcus pyogenes. It is most common in preschool-age children and highly contagious.

Classic Presentation

Honey-colored crusted lesions around the nose, mouth, and extremities. Begins as red macules that become vesicles, rupture, and form characteristic golden-yellow crusts, usually nonpainful but intensely itchy.

Transmission

Direct contact with lesions or contaminated items (towels, clothing). Spreads easily among close contacts and in daycares/schools.

Nursing Interventions

• Topical mupirocin (Bactroban) for localized disease
• Oral antibiotics (cephalexin, dicloxacillin) for widespread or bullous impetigo
• Gentle washing with soap and water to remove crusts
• Keep nails short; discourage scratching
• Do not share towels, bedding
• Children can return to school 24 hours after starting antibiotics

NCLEX Relevance

Honey-colored crusts is the classic diagnostic cue.