We report a case of hot flush successfully treated with formulations for yin-syndrome. A 56-year-old female patient experienced hot sensations and sweating on her face post menopause. Her hot flush was improved slightly with kamishoyosan and ryokeijutsukanto, but her symptoms were aggravated whenever she became tired. The patient was reevaluated and her prescription was changed to hachimigan, based on symptoms related to yin-syndrome and hypofunction, and a lack of resistance at the lower abdomen with the abdominal palpation. The patient appeared to respond favorably. However, the patient was easily fatigued and her symptoms returned when she felt tired. Ninjinto was added to the prescription based on the patient's “stuck feeling in pit of the stomach”. Her hot flush resolved and she no longer became tired easily. Although the use of formulations for yang-syndrome are known to be useful for the treatment of hot flush, formulations for yin-syndrome may be effective for the treatment of hot flush depending on the state of the patient.

A 48-year-old woman started to have dizziness after experiencing an earthquake. Her clinical signs improved with the use of shimbuto that was prescribed based on her symptom of yin-syndrome and hypofunction. At the same time, there was a decrease in reading errors with her finger, in a vein authentication device. One of the common reading errors that the security system makes is due to a change in blood flow due to vasoconstriction caused by low temperature. It is speculated that the use of a warming formula increased peripheral blood circulation, which contributed to the improvement of vein authentication.

A 31-year-old woman started to have a yellowish-white scab with exfoliation on her lip after delivery. Her exfoliative cheilitis did not improve with kigikenchuto nor juzentaihoto for treating deficiency of vital energy and lack of blood. After she developed upset stomach, her prescription was changed to hochuekkito which supports the digestive system. Her symptom improved dramatically. The characteristic of exfoliative cheilitis consists of chronic inflammation of lips which is considered to be yang-syndrome, therefore hochuekkito was effective as it covers yang-syndrome as well as yin-syndrome. It is suggested that psychological factors play a role for a pathogenesis of exfoliative cheilitis. We consider that antistress effect of bupleurum root and sedative effect of citrus unshiu peel in hochuekkito might also be key factors.