Originally Posted by KarrotKreek
Observation: No infection. Foot is not balanced appropriately, putting extra pressure on outside of hoof wall. This is not coincidence... the flare is occurring because of that pressure, on that side of hoof. Hoof should be leveled out and balanced, not simply trimmed shorter on the same angles. Flare can be trimmed and sanded down to the point of 1/2 the thickness of the outside hoof wall. Rasp the toe to provide a slight roll.
Correct! Possibly the most fundamental thing a farrier should know is "Hooves change shape due to how they bear weight".