If it were me, I would just leave her face alone for a couple days. All the experimentation - with cinnamon, coconut oil, etc - could be irritating it and making it red. I would just stop everything up completely and see if it reduces the irritation. If that doesn't work, I would get yourself some Desitin because if it's red and it's not yeasty, Desitin will protect and soothe the skin while it heals up.
I hope that helps!