I noticed on Kay's right back hoof that she has a piece partially torn off. It's about 3/4" wide and goes from the bottom of the hoof up about 1". I tried to pull it off and cut it off, but it won't budge. She won't lift the foot for me like she usually does. She didn't have any problem lifting the rest and I kept going back to that one between each of her other feet. She would not lift. She was slightly limping on it today. Her farrier can't make it out until Friday. Should I keep trying to get this piece off or will it be OK until Friday?