Occasional Let Hand paralysis. Effects?.

My mom got left hand paralysis occasionally for a few minutes and moth pull left side after 10 days of  stopping her pressure tablet. She is now in the hospital, where CT and MRI scans reveal that she has an ACUTE NO HEMORRHAGIC INFRACT IN THE RIGHT GANGLIO CAPSULAR REGION AND THE RIGHT CORONA RADIATA, CORRESPONDING TO THE RIGHT MCA TERRITORY. Even Though she is on continuous medication, we don't know what kind of problem this is. Whether curable or incurable! Doctors advise discharge after 2 days of bedtime with injections and tablets. And they assured me that paralysis wouldn't come again. But when we reached home, it came again.. and now we admitted her to the same hospital. Now she is alright. So the paralysis occasionally comes and goes. What should we do. Are there any changes to cure this problem completely. Docter said if the patient stops the tablets again, the stroke will come, Is it so... If the stroke comes again, does it cause any severe effects?.