Thank you for your query,
That staring episode was a seizure
activity due to head injury
Child needs neuro observation and hospitalisation as there was a staring episode and needs complete neurological assessment to rule out intracranial injury.
He needs CT Scan
of the brain to detect any intrcranial bleed or cerebral edema
In this situations consulting emergency departments for hospitalisation and evaluation is required.
Hope I have answered your query.