Hit Medicine

If you're a priest with discipline as one of your dual specs, spec it here, due to [spell=81749] you'll complete this quest in a second when you do it in tandem with Call Out Their Leader.

The quest title "Hit Medicine" is actually a literal translation of the quest item, "Dit Da Jow"

"Dit Da Jow", or "Die Da Jiu" in Mandarin, is an ointment used by traditional Chinese medicine practitioners in the treatment of simple fall bruises, and, don't quote me on this one, probably serves as a minor anti-coagulant. "Dit Da Jow" is just simply the Cantonese method of pronouncing the words.

It's usually light-brownish and has quite a pungent odour to it, although I cannot say for sure if it smells unpleasant or not. The medicine is never taken internally and applied with a great level of force over the bruise (yes, I am saying if you visit a TCM practitioner with a bruise it's going to get much worse before it gets better).

The Road to Kun-lai Quest Tree From Whiterock

#)Robbing Robbers of Robbers #)Educating Saurok #)The Spring Drifter(The Veiled Stair)

#)The Road to Kun-Lai{H}(Multiple zones)

+)Hit Medicine +)All of the Arrows +)Call Out Their Leader
 ├─────┬────────┴───────────────────┘         |
 |     |                                    Turnabout*
 | The Defense of Shado-Pan Fallback*
 |
 ├──────────────────────────────────────┐
a)Admiral Taylor has Awakened(A,v2,v3) a)General Nazgrim has Awakened(H,v2,v3)
b)Westwind Rest(A)                     b)Eastwind Rest(H)
 |                   ┌──────────────────┘
b)Challenge Accepted{H}
 | |                 └───────────┬>c)Blue Dwarf Needs Food Badly(A)
 | ├>c)Round 'Em Up{H}           ├>c)Best Meals Anywhere!(H)
 | └>d)Profiting off of the Past └>d)Deanimate the Reanimated{H}
 |
 ├───────────────────────────┐
d)Mogu? Oh No-gu!{H}    e)Trouble on the Farmstead{H}
 |                        /     \
 |       e)Farmhand Freedom     e)... and the Pot, Too! 
 |                       └─┬───┬─┘
 | e)Back to Westwind Rest(A) e)Back to Eastwind Rest(H)
 ├─────────────────────────┴───┴─┬───────────────────┐
 |                               |                   |
f)In Tents Channeling{H}        f)Barrels of Fun{H} f)Pandaren Prisoners{H}
f)The Ordo Warbringer{A2,H1,H2}  |                   |
 |                           └─┬─┴─────────────────┬─┘
Muskpaw Ranch{H}*              ├>The Shado-Pan{H}* ├>The Missing Merchant{H}*
                               └>Beyond the Wall*  └>Cho's Missive{H}*
Legend:
+ means Can start anytime, prequests not needed.
# means Other Zones
(A)/(H) means Alliance/Horde only.
{H} means Quest Have Horde Variant, click {H} for it.
* means another Quest Tree.

Additionall info:

1. 
   
2. Yes, Shado-pan questline have such weird prequests :D
3. 
   
4. Awakened quests have 3 version of quests each starting from NPC that gave you previous quests.
5. 
   
6. Ordo Warbringer have quest that starts via pop-up after Channelers and backup from Taylor/Nazgrim if you abandon first.
7.