So a few months ago, I had a really bad sore throat that lasted around a week, and I couldn't talk, whispering hurt, I kept coughing up saliva, and my throat really hurted (and in the same week, I had to perform in a musical). When it was starting to get better, I yelled a bit out of excitement, and now I sometimes cannot talk properly because of the saliva that is always in my throat, and I can't sing as well either, and not as high. Is there anything I can do?