Punched-out erosions with scalloped borders: Group A Streptococcal pustulosis.

We present a case of an infant with severe atopic dermatitis infected with Streptococcus pyogenes who presented with pustules, honey-colored crusts, and punched-out erosions with scalloped borders mimicking eczema herpeticum or eczema coxsackium. We draw attention to this case to highlight the similar clinical appearance between bacterial and viral infections in the setting of atopic dermatitis and the importance of a broad workup and coverage while awaiting results.