The stomach acids and food that keeps coming up are often due to the underdeveloped lower esophageal sphincter muscle between the stomach and the esophagus. (myorganicformula.com)
In babies who have reflux, the lower esophageal sphincter muscle is not fully developed and lets the stomach contents back up the esophagus. (medlineplus.gov)
Ashwini Mudra is done by contracting the anal sphincter muscles in a rhythmic manner. (yogicwayoflife.com)