 [ Symptoms ] i have had a cough for about a month now sometimes produces mucus sometimes dry cough also have had nausea with vomiting and diarrhea [ Disease ] you did not ask a particular question but i can comment any person who been coughing for a month needs to be examined to determine the reason since you are also having nauseavomiting which may or may not be related this is another reason for you to see a medical provider so you can be properly diagnosed and treated    two things that cannot be done blindly over the internet