I'm guessing foot rot?? What would cause a thick, crusty, swollen, skin condition on a goat's rear leg? Looks and feels much like rain rot on a horse. Goat is not down on her knees, and is walking on all 4's. Pulled the 'rain-rot-ish' hair off and exposed red swollen skin. Scrubbed with Nolvasen scrub, and dried. Started on Dimethox (which is supposed to help with foot rot), trimmed hooves, dried leg and applied a Zinc spray. Not anywhere else on goat and seems to only be affecting the one leg from the hock down. Eating, drinking, moving normally. None of the other goats are affected. Too dark for pics. Any other ideas or suggestions??