Hypertonic Saline Treatment involves the administration of Saline solutions with Higher Concentrations of Sodium Chloride than found in Normal blood plasma, primarily used to manage conditions like Cerebral Edema and hyponatremia. Its effectiveness is due to its ability to Draw water out of cells, Reducing swelling and Increasing serum sodium levels, but it requires Careful Monitoring to avoid complications such as Osmotic Demyelination Syndrome.