My niece is 25 year old. Four and half years back she had some frequent epileptic attacks owing to less sleep and exhaustion. She was taking a prescribed medicine for two years and never got any attack for that two years. She stopped taking the medicine for last two and half years and had no problem untill couple of weeks ago she had viral fever for a week and in the last leg she became too week and then she felt slight jerk twice. She has again started taking the medicine but after taking the medicine suffers from drowsiness and giddiness. She has stopped the medicine in between and having no problem of jerks etc. My question is: should she continue the medicine for whole life without break?