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Stomach ache or chest discomfort, particularly after meals is a classic indicator of Gastroesophageal reflux disorder. The reflux of acidic gastric contents from the stomach into the esophagus is the cause of the symptoms.
You can follow some of the measures suggested including -
1. Raise the head end of the child’s bed about 30 degrees and have the child eat smaller, more frequent meals instead of large amounts of food at one sitting.
2. Avoid eating right before they go to bed or lie down; let two or three hours pass. Try a walk or warm bath or even a few minutes on the toilet.
3. Pay attention to what your child eats. Fried foods and spicy foods should be avoided.
You might consult with a pediatrician who can prescribe appropriate medications to reduce the acid secretion and help reduce the symptoms of your kid.