|I strongly disagree with any ideas or theories regarding application of sole pressure. Hoof testers will tell you that's where you have pain, ... Adding sole pressure to an already-inflamed area will only compound the problem|
My take on the above theory is pretty much the opposite - while hoof testers will indeed hurt an inflamed corium & it's also likely the sole is thin, so pressure may be painful there anyway, I believe it's not just the sole but the whole corium that's sore, & it's not just the sole that hoof testers are squeezing. Putting a lot of pressure anywhere is going to do more harm, to that area at least, & forcing the walls to bear the entire load, especially while the laminae are already compromised affects the whole hoof. So relieving the walls(they can share the load when they're in a fit state to do so) AND padding the sole, to further protect them & spread the load AND providing yielding footing & an environment where the horse is encouraged to lie down when needed is the approach I think most successful. I also think minimal confinement & movement are important too, but sounds like it's down the road a bit in this case...
I do agree with AC on the subject of bute, etc. While the horse is in acute pain, perhaps it's a necessity, but very short term only. I'd get him off it ASAP. There are herbal alternatives for pain relief if necessary, which are not damaging to the gut. But so long as the horse is managed properly, while he'll still need special care for some time yet, the acute stage & pain shouldn't last long anyway.