Slight temperature- very fussy baby

Sarah • 🌈👶 Eliora 11-12-18 👼 👼 Christina & Isabella 12-17-16

My 4 week old daughter has a slight temperature but not a fever (99F). She feels warm to the touch and has been extra fussy and sleeping very fitfully. I called our doctors after hours line and they said as long as the temperature doesn’t reach 100.5 it’s not a fever so she’s ok. Any suggestions how to make her feel better or get her to calm down/sleep a bit better?