sick - fever reducing tips

I'm definitely down with cold /flu type symptoms and my Dr doesn't have an opening til Monday. I don't have a thermometer but my house temp is at 79 and I'm sitting in front of a space heater, in multiple layers, freezing my butt off. I have a killer headache, I'm stuffy, my throat hurts, I have a cough, and I hurt all over. I can't really afford to go to the er or minute clinic but will if I need to. Any ideas of what I can do or take to get better? And at what point do I need to throw in the towel and head to the professionals? I woke up not feeling great but it blew out of control super fast.