GERD and LPR
GERD (Gastroesophageal reflux disease)
When stomach acid refluxes into the esophagus, it is known as gastroesophageal reflux disease, or GERD. Similar to what you’d experience if you squirted lemon juice in your eye, stomach acid generates a reaction when it comes into contact with the delicate tissue lining the esophagus and neck. This is why heartburn, a burning sensation in the chest, frequently characterizes GERD.
LPR (laryngopharyngeal reflux)
The contents of the stomach and upper digestive system may reflux all the way up the esophagus, past the upper esophageal sphincter (a muscular ring at the top of the esophagus), and into the voice box and the back of the throat during gastroesophageal reflux. Anyone can experience laryngopharyngeal reflux (LPR).