Sulfur burps are extremely unpleasant. Most of the time, these types of gas or burps are caused by poor eating habits. Avoid foods high in sugar and limit your alcohol intake. You can find more information here: http://www.yogawiz.com/blog/home-remedies/how-to-get-rid-of-what-causes-sulfur-burps-burping-rotton-egg-smell-diarrhea.html