Whats a good overnight remedy for sore throat?

I have exams tomorrow and I REALLY want my throat to feel better by then.
I’ve had a sore throat for two days now (I went to the doctor; it’s not strep, don’t worry) I’ve tried a bunch of stuff that didn’t work.

Any quick overnight remedies?
( and its not just a slight sore throat. It HURTS like a… well… you know)