Hisone medicine belongs to the category of drugs called corticosteroids. It contains an active chemical called Hydrocortisone. The corticosteroids work to control the intense immune system when a body detects an unharmful allergen in the body. This medicine works efficiently to inhibit the production of certain chemicals in the body that trigger inflammation at the cellular level. This is how Hisone works to control allergic reactions associated with inflammation. Take this medicine as directed to reduce the inflammation caused by an allergen.