Abstract
　　Here we report a case in which Kampo medicine was supportively used for treatment of right upper quadrant (RUQ) pain due to Fitz-Hugh Curtis syndrome. A 42-year-old woman felt a cramping pain in her RUQ. She presented to her primary care physician. The pain was worsened upon inhalation or changing positions. No significant findings were observed except for inflammation. Computed tomography (CT) of the abdomen revealed a small volume of intrapelvic ascites, and the patient was referred to our hospital for further examination. The abdomen was soft, with tenderness in the RUQ, and tested positive for both Murphy’s and Carnett’s signs. Chlamydia trachomatis was detected with vaginal smear using polymerase chain reaction. Fitz-Hugh–Curtis syndrome was clinically diagnosed. Oral administration of azithromy- cin temporarily alleviated the RUQ pain, but the pain exacerbated again. Saireito extract at a dose of 5 g/day was prescribed, and after 2 months of treatment, RUQ pain dissipated. Thus, we concluded that this traditional Kampo medicine would be a useful supportive treatment for pain and discomfort from persistent RUQ pain due to Fitz-Hugh Curtis syndrome.