Could Use Some Prayer...

I don't mean to whine on here, but I really could use your prayers! I have been dealing with sinus junk for over a week now and it has progressed into horribly annoying coughing fits whenever I try to talk. To top it off my voice is almost gone, making me not so fun to talk to. I would not be asking for prayers over this if that was the end of the story. But tomorrow begins a 7 week Bible study that I am facilitating at my church. That alone brings enough nerves but now with my "talking/coughing problem" I am almost in tears thinking about tomorrow morning. I am headed to the store to try to find something that works... so far cough medicine, cough drops and water are not working. Any suggestions and certainly your prayers would be so appreciated! Thank you!!