Until she is able to swallow pills, treatment options are somewhat limited.
Keppra and Neurontin both come in liquid forms
and taste decent. Valium, or diazepam, is similar to Frisium also comes in a liquid form, but patients can develop a tolerance and dependence to that class of drug. The class also can cause significant drowsiness, so I would try to keep those in reserve. I don't think the doctor was trying to be alarmist.