What you want to ask is whether the ear thermometer always shows no earmuffs? There may be a deviation in the measurement position.

When measuring body temperature, aim the thermometer at the ear hole to ensure that the temperature probe does not deviate from the ear hole, otherwise the earmuffs will not display.

Ear temperature gun is a commonly used method to measure body temperature at home, which has no harm to the external auditory canal, is relatively soft and has a relatively fast measurement speed, and is generally suitable for infants.