Rainbow Dash needs to be in tip top condition to try out for the Wonderbolts, but she's too busy suffering from easily preventable horse diseases to pull through with her typical style and flair.
With her only options being highly trained medical professionals or Pinkie Pie's dubious homeopathic remedies, Rainbow opts for the only choice that makes sense.
Or at least whatever's quickest.
(Written for the Writeoff Association)
(Thanks to blzblz, Pegamoose, and Rupo for all their hard work.)