I beleive my horse has an ingrown hair on his back under the back of the saddle. He has had it for about 3 months now. It has recently become uncomfotable for him (I could tell when he kicked the wall when I asked for a canter the other day) and I have stopped riding him until t is better. It is over an inch in diameter and about 1/2 an inch high. I have called the vet and he is coming out tomorrow to check it out. In the mean time I am wondering if anyone else has had this problem and how it was resolved?