The water will serve as the base of the curative salve I shall make for the gazelles. For curative properties, I need some earthroot. Herbalists know how to find it, so if you are not familiar with this skill you'll need to find one to help us out.
Finally for potency, I need kodo horns - mere chips and fragments will not suffice. Kodos you can handle wander the northern part of the Barrens; bring some down for the greater good of the balance <name>, and fetch the horns for me.