Thank you for your query.
This is a gastrointestinal problem.The cause of the problem might be acidity.The antiacid medications should be given for 10 days.
If the nausea
still persists please do a liver function test and an urine examination.
The nausea might be due to gastritis
,an icteric hepatitis
or urinary tract infection
Hope this answers your query.If you have any other queries kindly direct them to me.Wishing your child a speedy recovery.Have a nice day.