Hi thanks for writing to Practo consult.
Since cough is lasting for more than 3days and child has disturbed sleep ,visit pediatrician. Also were all this medicine used by yourselves ! Or were they prescribed by doctor?
Next Steps
meanwhile you may give Luke warm water yo child very often. also keep child hydrated by offering 5-6 glasses of fluid which may include water, fruit juice, curd, butter milk, tender coconut water.