Board Thread:Suggestions forum/@comment-88.117.41.142-20151221171736/@comment-26298013-20151229155514

Well, that and Athelas only smells "wholesome" when crushed by most people, while when Aragorn crushes it he can drive away the Black Breath. Also, Aragorn has the power to fight sickness using his own strength. Though we don't know how it works, we know that boiling Athelas helps.