My son's hands and legs are hot but body temperature is 97.5 is it fever

A. when you take the temperature in the armpit of the child with the help of a digital thermometer and if it is 100 f (37.7 c) or more then you consider it as fever or when you take the temxperature in the oral cavity . of the child and if it is 99 degree fahrenheit then you consider it as fever and then paracetamol is given. alongx with paracetamol continue body sponge and keep the child in light clothes.