Infantile acropustulosis.

Infantile acropustulosis (IA) is a syndrome characterized by recurrent crops of 1- to 2-mm intensely pruritic vesicopustules that are found primarily on the distal extremities of infants. It is reportedly responsive to sulfones and unresponsive to other therapy, but if left untreated spontaneously resolves at about 2 years of age. It is more common in black male patients. The histopathologic findings and clinical course are distinct.