Is thermage safe for patients with a seizure disorder such as epilepsy?

No one knows because: Thermage, like other treatments marketed for cosmetics, is never covered by "insurance" & is not required to have performed prospective clinical trials for such safety issues. Thus only individual personal experiences, always biased, would be available. Epilepsy is also poorly understood, usually Tx'ed with various molecules, though some have found efficacy with ketogenic diets &/or psychotherapy.