- Digital. These thermometers are quick and accurate and can be used for taking temperatures orally, rectally and under the armpit.
- Ear. These digital thermometers are inserted into the ear and can only be used to take ear temperatures. They can be more expensive than other types of thermometers.
- Strip. These are placed against your forehead, and show the temperature of the skin, but not the body. They are not very accurate.
- Glass. There are two types of glass thermometers; those that contain a coloured alcohol to measure the temperature, or the more old-fashioned type which contains mercury. The use of mercury glass thermometers is not recommended, as mercury can be highly poisonous.
If you have a fever but are fine in every other way, then you may not need to do anything aside from making sure you are properly hydrated.24,28