Heal mount enables the character to wipe away disease and injury in the character's special mount (typically a warhorse). It completely cures all diseases, blindness, or deafness of the mount, cures all points of damage taken due to wounds or injury, and repairs temporary ability damage. It cures those mental disorders caused by spells or injury to the brain.
Heal mount does not remove negative levels, restore drained levels, or restore drained ability scores.