Learn about the triggers and treatments for excessive burping, including diet, hiatal hernias, and gastric ulcers. Plus, how to reduce gas naturally.

"Looking back, I realized I had never burped in my entire life," says Isabelle Zeidner, a 23-year-old Columbia social work grad student who lives in New York City. "I noticed it more as I got older.

Patients usually begin to burp within three days, although some may need more time for the Botox’s effects to set in. During his follow-up visits, Dr. Kaplan even encourages patients to bring a fizzy ...