Totally understand your concern,
Can you please tell me other symptoms like cold/cough/appetite of child/other Gastric or urinary symptoms.
Also mention the response to medicine.
Seems like child need evaluation as it's already 3 days, we can discuss the need for investigation, dose and frequency of medicines and prognosis.
Next Steps
mention other symptoms
mention strength of medicine to check if it's adequate
Health Tips
also watchful for fast breathing, sore throat, low food intake