We report the case of a 77-year-old female with subacute thyroiditis who was successfully treated with traditional herbal medicine (Kampo-therapy). On 18th December 2001, the patient was admitted to our hospital because of malaise and loss of appetite.
The patient complained of what she thought was a sore throat that began one month prior to admission, with a fever rising to 37.8°C 4 days before admission. Physical examination showed tenderness and swelling of the thyroid. Blood examination showed hyperthyroidism (TSH 0.02μIU/ml fT₃ 20.18ng/dl fT₄ 5.21ng/dl) and high inflammation (CRP 13.7 ESR 122mm/hr). We then diagnosed subacute thyroiditis and treated her with Kampo-therapy only. We arranged herbs according to the “Sho-kan-ron (_??__??__??_)” and gave her Keishi-ni-eppi-ichi-to (_??__??__??__??__??__??__??_) and Choi-joki-to (_??__??__??__??__??_). Four days after admission, her intermittent fever disappeared. After 10 days, her CRP became negative. After 13 days, almost all the symptoms had disappeared. Thyroid function (fT₃, fT₄) returned to normal after 17 days of Kampo-therapy. Subacute thyroiditis is a self limiting disease, but steroid therapy is often needed to reduce the symptoms and avoid thyrotoxicosis. In this case, the patient made a relatively quick recovery without steroid therapy. We suggest Kampo-therapy can be an effective treatment for subacute thyroiditis.