Intertrigo of streptococcal aetiology: a different kind of diaper dermatitis

Description

A 3-month-old infant presented with a 3-day history of an intertriginous eruption. His previous history was irrelevant and his last vaccination was at 2 months old according to the Portuguese immunisation schedule.

No other family members were affected and the child was otherwise well. Physical examination revealed an exuberant area of erythema and maceration of the inguinal folds and genitals (figures 1 and 2). This rash was bright red in colour and had well-defined borders. No satellite lesions were present.

Figure 1

Intertriginous eruption on the third day after initial appearance.

Figure 2

Intertriginous eruption on the third day after initial appearance.

Bacterial culture of the affected region was obtained by a skin swab, and empirical treatment with oral flucloxacillin was started, admitting probable bacterial aetiology. The culture yielded a growth...

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