this is a bit of an old thread.... I know mine sprained it. my doe likes to jump up really high when going down hill, then kick her legs around. sometimes she doesn't land on her feet properly, then limps around with a swollen hock. this has happened twice.
what I do now is leave her in her pen for a few days (she glares at me), then give her inflammation reducing foods (I like to treat as herbally as possible...). vit C and garlic. no aspirin or else she'll use the leg before it is healed. after a few days, I let her out with supervision and make sure she stays off the hill until she's close to 100%.....
anyway, hope your doe feels better soon!