<prompt> Answer this question truthfullyWhat is one treatment option for refractory Idiopathic intracranial hypertension, and how does it work?  <response>: <reason> One treatment option for refractory Idiopathic intracranial hypertension is ventriculoperitoneal VP shunt placement, which works by rerouting cerebrospinal fluid CSF from the ventricles to the peritoneal cavity, reducing pressure on the brain. 