A Debilitating Sickness sends the adventurer, now a friend of the Mag'har, to search for an exotic medicine component.
You will need:
It is good that you've offered to aid us, <name>. Our grunts have fallen sick from drinking contaminated water and I'm missing an ingredient to produce a healing salve. I'm in need of a rare mushroom called drycap.
Our foremost orders are to keep our location secret and not risk being spotted while looking for it, or I would go myself. The only place in Hellfire Peninsula where drycap grows is a cave at the Great Fissure, south of here.
Be extremely careful if you choose to seek it.
- This quest is only available after you complete the initial questline for the Mag'har. The first quest in that chain is  which starts with Nazgrel in Thrallmar. The final quest is  which ends with Gorkan Bloodfist at the Mag'har Post.
- The cave you are looking for is in the Great Fissure, east of Falcon Watch. You can see the cave shown on the map at 34,64. The mushrooms are inside the cave and herbalist will be able to see them on their minimap.