not sure if this works for all horses but when I used to go to big shows my pony would get really stressed so we would put her on Uniprim for a few days and she would calm right down and not be so worried abouteverything that she came into contact with. Its just an orange powder that you scoop it up and put it into their grain in the morning or at night. I saw a difference right away with her!
The horse. Here is nobility without conceit, friendship without envy, beauty without vanity. A willing servant, yet never a slave.