My Name Is Frank. A Relative, Female 83Yrs Suffered A

My name is Frank. A relative, female 83Yrs suffered a fall one year ago this month; subdural blood in brain area resulted in Surgery, 24Hr care approx 16 days ICU;appeared to have one or two seizures in ICU following surgery release to Rehab for approx 18 days. referral to Rehab center with my supervision in major city. No visible signs of recurring seizures since, Medications may or may not be preventing further seizures, but have strong side effects. At least 2 EEG test just before release from ICU failed to detect seizure activity. Unable to drive auto because of medications. Is there a way to determine medication required at this time and is there hope for eventual minimizing meds?