A 3 year old boy with isolated speech delay presented in casualty with vomiting not controlled with ondansetron iv and pantoprazole. He had fever for 20 days in last month, been treated as enteric fever and was a febrile for last 10 days. He developed convergent squint during hospital stay. BP recordings above 95th centile; on labetalol infusion.

UMN signs+, No hemiparesis yet. MRI brain showing ischemic infarct. Will share the report soon. What is the further line of management?