An armpit temperature is best because it is safest and works fine. If the armpit temperature has ended ninety nine °F (or even 3-7. Two °C), double check it using a rectal temperature. It's fantastic since in case your infant features a fever that is true, you need to observe a healthcare provider to double check having a fever. https://www.marketwatch.com/press-release/fever-patrol-review---no-touch-thermometer-launched-2020-03-21