There are multiple options for treating hyperhidrosis, including Kampo medicine. However, as for acquired idiopathic generalized anhidrosis, steroid therapy is the only way to treat the patients. There are few clinical reports including Kampo treatment for anhidrosis. We report a case in which keishikaogito based prescriptions were effective in treating symptoms caused by decreased sweating. A 69-­year-­old woman visited our institute in June 201X, complaining of reduced sweating and abnormal feelings about body temperature. Her physician prescribed various sorts of Kampo medicines, but no improvement had been shown. We considered that she was not able to sweat and had water accumulation under her skin. She was given Keishikaogito based prescrip­tions, and she came to sweat spontaneously and abnormal feeling about body temperature improved. Honzo-biyo says “Astragalus promotes sweating if there is no sweating, stops it if there is sweating.” Keisetsu Otsuka said in Kinki-yoryaku-kowa that Astragalus works in both cases with too much and too little water. Kampo treatment especially containing Astragalus can be effective for sweating disorders.