The correct approach for treating Ian's injury, given that he does not have a laceration and the skin is intact, would be:
The doctor will have Ian use an ice pack to reduce swelling but will not apply a bandage to the wound.
Since there is no break in the skin, the primary method of treatment would focus on managing the bruise and reducing swelling through the application of ice. Bandaging is generally not necessary for a bruise where the skin remains intact.