CT scan/ EEG was done?
can cause of seizure was detected ?
I want to tell you that medicine as advised by your Doctor need to be taken regularly and must not missed dose even for single day
for controlling fits patient need to take long term (3-5 years) treatment
Yes Seizure can be cured if treated properly
you can take normal diet
You can Consult Good Neurologist
for second opinion, i can guide you further