Should have left SB with his Dad. That way, we'll be spared the soon to come tale of the kid having to monitor her breathing. Did she go out last Wednesday/Thursday/Friday, by any chance?
Needs to take some paracetamol and ibuprofen to get the temperature down, have something like full sugar lemonade, sleep on your front/side facing down a bit & hugging a pillow (as the middle of the night sinus emptying that drops what feels like a cup of water down your throat is horrible).
Still, isolation ends Wednesday next.