hi your best bet would be to find a good ent doctor. have you tried gargling with sea salt water taken things like honey and lemon or honey lemon and grated ginger grate some ginger fine and give it a 30 sec in the micro wave in a mug then add the rest with hot water or tea green or black. or have a good read of this site it’s the part on voices. <link> just copy into google to the www. to open and read. good luck
i don't have a fever or a cough. i haven't had a voice for 24 days what is causing this.