High level dysfunction means various psychological neuropathy by the damage of brain.There are some cases that will make the patients physically disabled because of brain damages with cerebrovascular damage (cerebral apoplexy) or with traffic accident, but that sometimes will heal them with the passage of time.Even if physical damage is slight or difficult to be found, there are some cases where brain damage will be seen. And those symptoms such as a defect of memory, inattention, social behavior disability, aphrenia, etc. will be found, so that they sometimes have difficulties to adapt themselves on daily social life.In this case, the subject met the car accident; she was hit by a light pickup truck and diagnosed as having high-level cerebral malfunction by traumatic subarachnoidal hematoma, cerebral contusion, skull fracture and extradural autologous(EDH).Seven months later she had left the hospital and we started performing aromatherapy once a week, in total 9 times, and observed the QOL progress by means of the KK method.