When pathological changes have taken place in the human body, usually “positive reaction point” can be detected at the corresponding areas of the auricle, such as tenderness, discoloration and pigmentation, morphological changes (upheaval, depression and cords), desquamation, pimples, low electrical resistance, and so on. These points are used not only for clinical diagnosis, but also for treating diseases. Therefore when the prescription based on the symptoms is formulated, reaction points should be detected through careful observation, pressure with the needle handle, or determination with the electrical resistance of the skin for strengthening the curative effect.