That is why is best to adequately pad the horse's head and face with a soft blanket, especially in the area of the nose band hardware and side buckles of the halter. Temporary paralysis may manifest as a drooping lip, a flaccid nostril on one side, perhaps a floppy ear. Sometimes the horse's eye will water continually. It is possible that a horse could have difficulty eating if the paralysis affects both sides of the face. Generally the side that he was laying on is the one that is affected.
Recovery takes about ten days.
However, past behavior patterns and a low level of androgens make the yearling continue to act somewhat like a stud-colt. Use caution in turning the new gelding out with a group of mares, for example. He may learn a lesson the hard way. Depending at what age he was gelded, the horse may need as long as 4-6 months to mentally and physically forget he was a stallion. After castration, the gelding's metabolism is likely to slow down.