Thank you for your question. It is possible that the act of coughing is activating the gag reflex which causes vomiting. We are not certain as to what is causing his coughing as you haven't told us any detail pertaining to his medical history. However, if you claim that the coughing and increased mucus production occurs directly after eating breakfast, there may be something that he is eating that is causing this to happen. It is possible that your husband may have a food allergy to a certain food he eats for breakfast. We recommend that you investigate further into the reason why he is coughing in the first place. Once this is treating, the vomiting will likely stop as well.
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