What preparations are effective against hoarseness?

Good morning, for several days I have a powerful hoarseness, I feel discharge in the throat and a small dense runny nose running down my throat, sore throat. I work with my voice (teacher). Is gardoloX Manusilver + linseed rinses + zatoxin duo a good choice? I am afraid of drugs that will increase dry mouth at night (I have been struggling with this problem for a long time). Thank you in advance for your reply.