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A 73-year-old Japanese man developed chronic intractable itching due to prurigo nodularis. High-dose glucocorticoid ointment failed, and the treatment resulted in poor glycemic control. Repeated scratching caused hematogenous bacterial dissemination via cutaneous injuries, resulting in the formation of iliopsoas and spinal epidural abscesses that required long-term antibiotic treatment. Pregabalin was administered to treat the pruritus, and a considerable improvement was observed. A reduction in the dose and intensity of the topical corticosteroids improved the patient's glycemic control, resulting in the complete resolution of the abscesses. Pregabalin significantly improved the patient's pruritus and decreased the risk of infection.
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Imai et al. (2013) studied this question.
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