We vaccinate and worm everyone ourselves, that way we know it's done. New horses are quarantined 30days. 'Course that doesn't help if it's airborne.
Can you get the meds without having to go through a vet?
Hey, do you ever pony your horses off another horse? Winnie got her stitches out and needs to be hand walked every day and I got the brilliant idea of ponying her while riding Tuffy. I tried it today and guess what, it didn't work. Tuffy was trying to be a little too friendly and Winnie was dancing around trying to get away from him. I thought ponying would be easy but it ain't!