Thank you for the advise. This incredibly useful. And yes you are right it is the coronary band where the swelling is. We live halfway up a welsh mountain so given the time of year the ground is now wet. We supplement their food with biotin and they have a zinc lick, which to be honest they don't really touch. We also give them a further supplement which covers trace elements like Zinc, copper etc. Washing his foot sounds like a very good idea. As you might understand, we were worried that we aren't doing enough to help him. Frank, an unrelated Billy has taken on paternal responsibilities and will nuzzle him and provide further assistance when he is standing. He leans up against him, hooks his horn underneath him, tells him when he has been sitting in one place for too long. I've never seen anything like that before.