Answer:
Electro-convulsive therapy
Explanation:
Electro-convulsive therapy is the most famous, effective and fast treatment in depression. In this process, the electrodes are put on the patient's skull and the controlled current is applied when the patient receives controlled anesthesia.
It is also applicable to seizures. ECT is currently the fastest and very effective treatment in controlling the severe symptoms of depression. This technique is also applicable to the manic patient and also applicable to other patients too.
Thus Cassie was recommended by her psychiatrist an ECT.