I'm not optimistic about cures for epileptic seizures. It might be that as time progresses after the accident they subside. But I am afraid you're stuck with it. It's neurological damage, not a psychological trauma.
Other than that here is a yahoo question asking the exact same question.
http://answers.yahoo.com/question/in...2011147AANOsY8
Someone even suggests meditation. Maybe you will find something there..
I would however recommend that you discuss every thing you might want to try out with your doctor first. Anti epileptic medication is not something you should just mess around with. There are some alternative medications that you could try. Each person responds differently to medication so it might be that you have no side effects from another medication.