Asymmetric periflexural exanthem of childhood (APEC) is a self-limited disease characterized by unilateral exanthem. The etiology is unknown, but a viral agent is suspected. Most often there is no formal proof of an associated viral etiology, but several associations between APEC and some viruses have been described. We report a 2-year-old girl with APEC associated with influenza A. This case allows us to provide an additional argument on a probable viral etiology of APEC and a possible etiologic role of influenza A.

Dermatology patients routinely ask how long their skin condition may last, yet this critical aspect of their care has not been emphasized in the literature. When a given diagnosis may be self-limited, it is essential that clinicians meet patient expectations by properly discussing the possible time course for resolution. Furthermore, being aware of, and prioritizing the knowledge of the duration of a skin disease can help limit continued exposure to side effects of prescribed treatments once the condition may have self-resolved or remitted.