I agree with the majority of responders in another thread that KY is very effective, less messy and easy to wipe off your thermometer once it has been removed from the rectum and read. I would ask what is everyone's personal preference for actually taking the temperature:
1. apply lubricant to thermometer and then inserting into rectum.
2. lubricate the rectum by inserting a lubricated finger and
then inserting the thermometer.
3. Other preferred rectal temperature technique