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Eosinophilic granulomatosis with polyangiitis (Churg-Strauss syndrome) is a small- to medium-vessel vasculitis associated with asthma and eosinophilia. If left untreated, it can lead to systemic complications with a high mortality rate. The authors present a case of eosinophilic granulomatosis with polyangiitis that initially presented with adult-onset asthma, asymmetric neuropathy to the right lower extremity, and erythematous maculopapular cutaneous lesions to bilateral lower extremities. Through an extensive work-up, the diagnosis of eosinophilic granulomatosis with polyangiitis was made. Steroid therapy was initiated, causing his eosinophil count to return to normal and his presenting symptoms to improve, although his neuropathy and weakness remained. It is our hope that presenting this unusual condition manifesting in the lower extremity can provide guidance to clinicians who might encounter this condition and help them to recognize and treat it before severe chronic complications can manifest.