Have been given this three weeks ago. I find I have choking sensations from excess fluid in throat. I have copd bronchitis am on ventolin seretide and spiriva. It's making me feel v embarrassed Am drooling and spitting fluid when I speak. I also have reinkes oedema which means my vocal chords are I flamed. I've had it for a year now. V hoarse all the time. Is it normal to have this dribble on the throat with carbocysteine?