Fever baby - lemon bath?

Hi mummies, ftm here. How do i manage baby’s fever? Other than giving doctor’s panadol. My baby is 2 months+ he just got his jab and his body is on and off warm. How do i sponge him? Just like wipe down whole body? Room temp tap water or warm water or cold water? And does lemon soap or lemon bath helps with the fever ? #firsttimemom