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Difficulty: EasyNeonatal Disorders

A mother brings her 33-week-old son to the pediatric clinic due to a newly developed facial rash. The infant was delivered at full term without any maternal or fetal complications. He is exclusively breastfed, has normal urine and stool output, and is gaining weight appropriately. The infant's temperature is 37.0∘C37.0^\circ\text{C} (98.6∘F98.6^\circ\text{F}), pulse is 130/min130/\text{min}, and respirations are 32/min32/\text{min}. Physical examination reveals multiple scattered erythematous papules and pustules confined strictly to the cheeks, chin, and forehead. No open or closed comedones are observed. The remainder of the physical examination is unremarkable. Which of the following is the most appropriate next step in management for this patient?

  1. Daily cleansing with mild soap and waterAnswer
  2. B
    Empiric intravenous ampicillin and gentamicin
  3. C
    Prescription for topical mupirocin
  4. D
    Initiation of oral acyclovir
  5. E
    Application of topical benzoyl peroxide

Answer

The most appropriate next step in management is daily cleansing with mild soap and water.
The patient's clinical presentation is classic for neonatal cephalic pustulosis, an inflammatory condition characterized by erythematous papules and pustules on the face, typically emerging at approximately 3 weeks of age. Unlike true acne, there are no open or closed comedones. The condition is entirely benign and self-limited, requiring no specific medical or pharmacologic treatment. Daily gentle cleansing with mild soap and water is the appropriate management.

Step-by-Step Solution

1
Analyze the patient's demographic and clinical presentation.
A 3-week-old, healthy, afebrile infant presents with an isolated facial rash consisting of papules and pustules without comedones.
Identifying the timing, location, and morphology of neonatal rashes is critical for differentiation.
2
Formulate a diagnosis based on the clinical findings.
The presentation is classic for neonatal cephalic pustulosis (sometimes colloquially called neonatal acne), differentiated from true infantile acne by the absence of comedones.
Recognizing benign physiologic rashes prevents unnecessary testing and treatments.
3
Determine the appropriate management for the diagnosed condition.
Neonatal cephalic pustulosis is a benign, self-limited condition. Gentle cleansing with mild soap and water is the only necessary intervention.
Avoids overtreatment of a physiologic inflammatory response.

Key Concept

Neonatal cephalic pustulosis is a benign, self-limited rash appearing around 3 weeks of age on the face; it lacks true comedones and requires only supportive care with routine gentle cleansing.
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Topics

Neonatal Disorders

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