Virus

Hey! So my almost 1 year old started a fever on Thursday. It has gone up and down over the past 3 days. She’s very clingy and cranky. She tested negative for covid. Pediatrician says she’s fighting a virus. I just don’t know what to do at this point. Has anyone had their LO with a fever for 4 days. I’m ready to panic! Help, advice, encouragement would be appreciated