Hey guys! I need help.. So, my horse has a horizontal hoof crack about an inch long. It's almost half way down on her right front hoof, but I don't know what it is from! She has ever had an abscess, or a stone bruise. She is an ex race horse, if that makes a difference.. I just noticed the crack today, and I always do a complete check over on my horse before and after I ride. She has been limping on that one right leg/hoof on and off for the past week. Any ideas on what I should do about it?