Suggest Treatment For Post Nasal Drip And Hoarseness Of Voice

Throughout that last few days my voice has been becoming more hoarse. I can no longer sing and my voice has gotten more and more raspy. I don t really have a cough, got some greenish mucus and I feel like I may have some drainage down the back of my throat, my throat is also a little sore but not too bad. No fever. Which over the counter medicine would be best?