I've noticed that lately my haflinger has had really dry hooves. He got a white line around his coronet band and underneath his hoof it would chip off rather easily when I picked his feet. I bought him Hooflex which works great! His hooves don't have that dry look to them anymore. Unfortunately he freaks out from it! Sammy doesnt mind me putting it on him but the second he smells it, he completely freaks out and today he got himself hooked around the wooden post and cut his chin open. Is there anything I can do to help him get used to it?