According to the present invention, the application of thermal stimulus which are effective on medical conditions are provided in a database. And the increase rate of blood flow before and after applying stimulus to a specific site is compared with the increase rate in the database storing the rate of increase which is previously effective on a medical condition. And when the increase rate of blood flow by application of the thermal stimulus at a selected specific site reaches the increasing blood rate flow which is previously effective on a medical condition, the effect of thermal stimulus is recognized. And the increase rate of blood flow which is effective on a medical condition is 30% or more, preferably 100% or more.
