I Have Lost My Voice And Have Had Throat Pain

I have lost my voice and have had throat pain for several weeks. I went to the doctor 3 weeks ago and was diagnosed with viral bronchitis and was given zithromax as a precaution and Flovent inhaler and Proair. I have not had my proper voice since October 20th. Cannot seem to figure out what is wrong. No other symptoms. Alot of mucus in the morning. Trying Mucinex as well but not helping. Can you advise?