Intractable Recurrent Abscess Around the Nipple Caused by Mastitis Remitted by Kampo Medicine Treatment: A Case Report.

We present a case of a 46-year-old woman with recurrent breast abscess resistant to conventional treatments. Initial diagnosis of mastitis led to antibiotic therapy; however, abscess formation recurred. Subsequent interventions, including incision, drainage, and various antibiotics, were insufficient because of recurrent infections. Due to the side effects of long-term antibiotic use, the patient was referred to the Kampo medicine department to address the premenstrual symptoms and recurrent infections. Treatment with Kampo medicines resulted in significant symptom reduction within a month. After treatment, the patient experienced mild symptoms, and breast abscess recurrence was prevented for more than two years. This case highlights the potential role of Kampo medicine in the management of refractory breast abscesses associated with premenstrual symptoms. Further research is required to explore the efficacy and mechanisms of action of Kampo medicines in similar cases.