J.S.
Put honey in hot tea, and if you can get local honey then that's even better. Use green tea or chai tea. Chai tea has green tea and a blend of other teas plus some additional spices that are good for illnesses. Hot tea can help break up the mucus and soothe your throat as well as your stomach and sinuses.
Try to get in the shower so the steam can help your lungs and sinuses.
It sounds like a nasty infection.
When pregnant I was always given the green light for Tylenol products, like Tylenol Cold and Sinus. Also for Sudafed, original. Sudafed didn't do a thing for me but the Tylenol helped a little.