My voice was hoarse like gargling sand, people had difficulty hearing me, I had to aggravate the condition by trying to shout/talk loud. My doctors said it could be permanent from either the cancer or surgery for a catheter inserted into my neck. Took weeks to go away, came back and went away more than a couple of times from last October-winter of last year. Fortunately since early this year no issues. Not being able to speak properly had me searching for text machines to communicate. I thought it would be permanent.