In the Fallen Empire setting that I'm noodling with, fighters, mystics (clerics), and wizards all have their own sorts of healing, with different restrictions and effects. Fighters have what amounts to Hollywood-style first aid that allows for rapid recovery while resting. A wizard's arcane mending can patch someone up quickly, but it will fade (because arcane power requires a mind to focus it). The mystic's ability to channel divine power allows for rapid, true healing.