3 month old baby having focal seizures

My baby is three months old and has been hospitalized since March 17. She began showing little jerking movements a little after her two month vaccines were put. After 15 days my baby was having convulsions 2:30 to 4 minutes in duration. And ocurring every hour or hour and a half. Inmediatly the hospital began doing exams and until today everything has come back normal. Right now she is on Keppra, Phenobarbital, Leocovorin, Piridoxine, and Topamax and still having seizures frequently. Do you guys have any recommendations, she is so little and having to use that much medication gives me the creeps . Appreciate all of the considerations.