Disposable medical device for monitoring a patient's condition related to the body temperature of the patient over time, using a temporary, wireless, self-adhesive patch affixed to the skin of the patient that comprises a sensor that monitors temperature; Disposable medical devices incorporating a temporary, wireless, self-adhesive temperature monitor for monitoring the body temperature of a patient to which the device is affixed; Disposable medical device for monitoring a patient's condition related to the temperature of the patient over time, and comprising a wireless identification apparatus that facilitates the identification of the patient; Disposable medical device for monitoring a patient's condition related to the body temperature of the patient using a wireless self-adhesive patch that comprises a sensor that monitors temperature, and software sold as a unit therewith for receiving, processing, storing, transmitting and displaying temperature data from the sensor; All of the foregoing for home use