How would you manage a patient with LGI-1 encephalitis with faciobracial dystonic seizures who has not improved with 3 days of intravenous steroids?

I typically treat with five days of IV steroids. In patients with autoimmune encephalitis, including LGI-1, who do not improve after five days of IV steroids, I would then move to IVIG or plasmapheresis (depending on patient comorbidities, availability of plasmapheresis, and severity of symptoms). I...