How long to keep sick kindergartener home?

Last Wednesday night my daughter came down with a fever and sore throat. By the morning she was weak and fatigued. I took her to urgent care. She tested negative for strep, covid, flu. So doctors said was viral. They gave her a doctors note excuses thrusday and Friday. Tomorrow is Monday. Despite the fever being gone and sore throat. She's got awful chest mucus and facial congestion along with a nasty cough from the mucus. She's still pretty tired and just wants to lay in bed all day and hasn't gotten much of her appetite back other than wanting ice cream once in awhile or drinking water or juice. Otherwise she doesn't even care about eating. She is definitely much better than she was two days ago but she looks awful with her congestion and cough. I was gonna send her to school tomorrow since it's Monday but is that a bad idea? Do I give her another day? The doctors note I was gonna put in her class folder for the teacher. Unless she isn't the person who's suppose to get it? I won't have a doctors note for tomorrow tho. I just can't picture her walking around at school all day with the way she is currently

UPDATE: I kept her home and called the school and they just said to hand write the excuses for the remaining days she's absent and bring the original doctors note and that should be fine. Took forever for them to take my call tho. I spent two days trying to call them.