How do you counsel patients on anti-seizure medication necessity (or lack thereof) in the setting of PNES without comorbid epilepsy?

Occasionally, patients referred for dedicated epilepsy management for "medication refractory epilepsy" are found to have purely non-epileptic spells. In those cases where the diagnosis of epilepsy is properly excluded, part of the management is to taper off any ASMs/AEDs that do not serve some other medical or psychiatric purpose (mood stabilization, migraine prophylaxis, etc.). What techniques have you found effective for persuading patients who are either fearful of, or outright opposed to, a medication wean?