Would like to know whether your child ever had a convulsion? Why was the EEG done ?.Now Since the EEG is suggestive of generalised seizure
activity then as prescribed start the medication.The Cartoon watching and the vedio games need to be restricted because these can aggravate a seizure activity.The medicine does not have major side effects but while on mediction the liver
function test needs to be done at regular interval.The medicine will need to be taken for 3-5 years from the last day of seizure activity.I would suggest you to meet a neurologist
who will be able to guide you regarding whether in his case if he will require the medication or not.