Rejecting something that was spoken
To dream that you are coughing, represents your fears or anxieties about the future. This dream can also mean that you have made a negative choice in some important matter.
Dreams of a cough symbolize that words are being caught in your throat, and that you are resisting saying what you mean or meaning what you say. See Throat.
To dream that you are aggravated by a constant cough indicates a state of low health; but one from which you will recuperate if care is observed in your habits.
To dream of hearing others cough, indicates unpleasant surroundings from which you will ultimately emerge.