Hallie....
the best cure for your grandson's condition is the oldest and most powerful holistic therapy that exists....shivambu or holy water...the universal cure for all diseases... auto-urine therapy....
best sites are http://www.shirleys-wellness-cafe.com/urine.htm and
linked to that is http://users.erols.com/martinlara/ ...and http://naturinologie.info/english.html the info. will bring health to everyone on the planet...
for epilepsy, which is a kind of cerebral allergy, just drink a few oz. daily,..straight or diluted..
also read about the universal remedy at Lara's site....simply a few diluted drops held under tongue every so often.....
read, enjoy and be well...........shakti