A 69-year-old woman with a 10-year history of hypertension (HTN) and regular use of antihypertensive medication. Six hours before admission, while watching TV, she suddenly experienced numbness and weakness in the right upper and lower limbs, dysarthria, drooling, headache, and vomiting once, followed by somnolence, prompting emergency admission. On admission, BP was 195/105 mmHg (26/14 kPa). Three months later, her condition stabilized, with near-complete recovery of right-sided hemiplegia and regained independence in daily activities, but BP remained elevated. What is the best management at this stage?