Still saying the same thing. Get clean. Use Q-Tips to gently explore and get clean right down to the bottom of any cracks and along the length of it. Thrush can sore a horse overnight, make no mistake. There could be an abscess brewing as well that may account for the soreness. Do not allow him to be sore. Pad and boot him. You must protect the bone at all costs. Its not just the hard ground, its his descending weight that is also a biggie.
With deep cracks you probably have narrowed heels, which folds up the back of the hoof like an accordian and makes those cracks deep. There should be no central sulcis crack at all. It should be just mere depression on top of the frog. Shove medicated cotton balls in there to continue medication and the crack will get shallower as the hoof heals. When the cotton balls won't stay in there anymore, now you're getting somewhere.
When the thrush is eliminated (and that means keep after it, or it will come back) just getting rid of the infection will see the heels spread, and frog bloom. That frog may not be as big as you think. It could be a false covering over edema fluid that needs to be drained in the process. Your adventure with the hoof pick and finding a squishy hole may be evidence of that. Use a needless syringe to flush it out with epsom salts/water...nothing caustic. If it is an abscess, you'll chase it away, prolonging it, while it finds another place to drain. You just want to pull and clean.
It sounds like you are going to be doing this diligent homework on this horse, plus providing your own WL. I'd be asking for some sort of return on your efforts.
A good balanced trim is also important. There may be a long breakover pulling down on P3's nose and thinning the sole, or excessive bars jamming up into the corium that may have caused this trauma, or both. A bull nosed hoof is a sign of imbalance indeed and another aggravation.
Regardless, get cleaned and dried up, comfortable for proper movement and development and lots of movement to develop and help spit this infection out. This should help a lot to resolve things, including the navicular suspicion if there has not been previous damage involved to this area.
This horse has to go through a degree of rehab and the owner is going to have to find patience. If the owner was more aware and protecting her investment, things wouldn't have gotten this bad. The farrier is only there for an hour, the rest of the homework is her responsibility.
Last edited by missyclare; 09-20-2012 at 12:58 PM.