Seizures have MANY root causes.
very often there is heavy metal toxicity in the brain, nutrient deficiencies, poor methylation, viruses, pathogens etc. I cant give advice without knowing the complete history of the individual as it is a very touchy subject.
What I can say is almost always, epileptics require lots of omega 3 fats (both EPA and DHA) so very often a ketogenic or at least a diet high in healthy fats is necessary. Taking cod liver oil daily is also necessary. there are many types of homeapthics and nutritional supplements that should be taken but they are dependent on the individual. A heavy metal analysis test should be done and a heavy metal cleanse should follow also as well as PLENTY of liver support.