Doctors hat

The Doctors hat is used during A Tail of Two Cats to convince Unferth that you are a doctor. It is obtained from the Apothecary. If a player gets a nurse hat during the quest and later wants to get the doctors hat, or vice versa, they can destroy their current hat and talk to Apothecary to choose which hat they want. At one point, it also caused baldness to whoever wore it. This has since been fixed by Jagex.