So about 2 weeks ago my horse turned up lame, the farrier came out and confirmed it was a bruise, we wrapped it with Animalintex and he got a little better but not much so the farrier was out again and confirmed the bruise turned into an abcess and he popped it with his fingers we soaked it for 4 days and kept it wrapped he was completely sound 2 days before the farrier came then the morning the farrier showed he was limping just a little.we thought he was just sore form not having a shoe so we put it back on and he was ok after that. Then that afternoon I took him out to the arena to do groundwork and after trotting a little he started to limp again! The farrier said he may be sore for 2 days so I didn't worry, then yesterday I went out and again he was fine so I saddled him up and went to the arena he was fine until we started trotting then he would limp a little. After we slowed down to a walk he was limping and would hold his foot up a little. It was strange because he would be fine for a few strides then limp again on a different surface. His hoof feels warm and but I cannot feel a digital pulse in it. The farrier put a pad on his foot when he put the shoe back on, is it possible this could be another abcess? Any thoughts as to what it could be?