1, you can try physical cooling, such as in the air conditioning vent, until the temperature drops and then see what power consumption program is opened, close it.
2, if the phone is already very hot, you can turn it off immediately.
3, when the heating trend is relatively large, it may be that the use of time is too long, you can take a rest, turn off GPS positioning, WiFi, Bluetooth, etc., or direct flight mode.