What kind of medicine for stomache should i give my 5 yr old son?

Regulate bowls: Most children will complain of abdominal pain if their stool are firm. Use the diet to keep stools soft and retrain to have bm by sitting for 5 mins max after a meal. Dinner is the best time of the day, since usually families are less rushed after dinner. This is not a punishment but an encouragement, let the child have a fun object these 5 minutes in the bathroom. A warm tub will assist w/ pain.

No junk food: A proper diet is the best medicine. Do away with the junk food.