Indigestion or reflux esophagitis is the most common cause of discomfort in the upper part of the stomach to the throat. Indigestion, such as an upset stomach caused by a recent poor diet or overeating, or nausea or vomiting, can also cause discomfort from the upper part of the stomach to the throat. Reflux esophagitis is a condition in which food digested by the stomach may back up into the throat, and the resulting stomach acid may reflux with it, causing burns in this area causing discomfort. If the symptoms persist with indigestion, it can be treated with medications that promote gastric motility, such as domperidone tablets and mosapride, under a doctor’s supervision. Reflux esophagitis can be treated with acid-suppressing drugs and gastric power drugs, such as omeprazole, rabeprazole and mosapride. If there are abnormalities in the body, it is best to go to the hospital gastroenterology department for relevant examinations to determine the specific cause of the disease, to avoid delaying the condition.