Hello and thankyou for approaching DoctorSpring.com
Thank you for posting your query.
I have noted your mother's medical details.
There is a mild risk of her getting seizures, if she skips keppra for two days. It is better to get her the dose if possible (by going to the emergency room).
However, if she is in a place where medical care is not accessible immediately, then, we can wait and watch, as four-year seizure freedom means very low risk of recurrence of seizures.
I hope it helps.
Dr. Sudhir Kumar MD (Medicine), DM (Neurology)
Senior Consultant Neurologist,