What Boots said
I used to ride the horse in my avatar in Christmas parades. In his younger days, he seemed to know when parade day was and would find a big mud pit to roll in, that morning.
He was so caked one time, I almost couldn't find him, under all the mud. He had mud in his eyelashes that year.
It was the one time in 24 years I really got mad at Duke, because it was too cold to bath., lollol
It took me a few hours but, with the help of a metal shedder, the shop vac, brushes, wearing out my rotator cups, then a light spray of Sho Sheen, he was parade-ready.
Meaning, they can get spit shined without a bath but boy, it takes some elbow grease.
This unwanted horse hiatus that you have to take will be a good time to see if Diva is prone to rain rot. Something horses get across the tops of their backs and itches them like crazy.
If she does get rainrot, diet might have to be re-evaluated. http://www.thehorse.com/articles/211...nding-rain-rot
Also, be sure to check her feet for thrush or maybe your trainer can at least do that. Since Diva came to you with thrush anyway, not being able to keep her hooves picked and sprayed may allow thrush to start up again.
Get better soon for lots of reasons