Avoid swallowing air: Burping usually results from swallowed air. It is usually harmless. People who chew gum often end up swallowing air. Discontinuing gum chewing is an easy way to avoid that. If the burps have a persistent rotten egg odor, a doctor should be consulted, since that may be a sign of an infection of the stomach called giardiasis.
Answered 5/20/2014
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