I believe she had Temporal lobe epilepsy which is associated with psychosis and aggressive behavior.An attempt should have been made to clarify that religion is a circular system based on faith and science is provable fact. It is true some patients do not respond predictably to medications but that does not mean they are possessed. They may need more consultations to find a treatment plan that just might work. Exorcism is based on faith and a non believer or person of another faith mind find ridiculous abuse of religion resulting in risk to a patient who is suffering. In extreme cases of non responsive patients surgical procedures are deployed at Mass General or Mayo clinic to do electro coagulation of epileptic focus or surgical removal of Temporal lobe.