I was having cough since a month. The condition got worse and I was not able to speak even a word. I consulted a General Phsician for my cough problem. The cough problem is almost gone now, but the problem of voice still remains. I am able to talk properly or a bit loudly but I am not able to scream now. When I try to scream only thing that comes out is a vibrated voice or only the air. Even if I am humming sometimes the voice breaks. What could be the possible reason and what to do further ?