Incontinentia pigmenti is an X-linked dominant genodermatosis that can affect the teeth, eyes, and central nervous system as well as the skin. We describe an infant girl with characteristic cutaneous findings, which progressed through the vesicular, verrucous, and hyperpigmented stages in the first year of life. During the neonatal period, recognition of the linear distribution of vesicular lesions and associated peripheral eosinophilia as well as leukocytosis (which might suggest an infectious etiology) can help to establish the diagnosis. This enables early initiation of ophthalmologic care, which can help to prevent visual sequelae.