Not out of the woods yet

Jester seems to be 3 legged sound one day, fine the next, and 2 leg lame the next. Today I soaked the LF (the one that popped the abscess at the toe whiteline/sole juncture) with ClO2 (Stabilized Chlorine Dioxide). When I took his hoof out, there appeared a crack in the sole where I least wanted to see it... in an arc on the sole following the toe wall- from quarter to quarter around the toe, extending from the abscess exit. I am praying we don't see it get worse!!! He wants to stand on that foot, and rest the right fore more. I am keeping it disinfected and booted. The apex of the frog is close to equal with the wall at the whiteline, so I am suspecting his sole is paper thin under P3, also known as the coffin bone. Over the week, he ate well, especially the hay. A couple times I shut him up in the stall so he could stuff his face in peace. I do NOT like seeing his ribs. He is not losing, I think he is putting the weight back on. One day last week he refused his beet pulp bucket. By the next day his appetite for it returned. He never lost interest in hay, fortunately! Good signs- no patchy sweating, no heat in the legs, increased comfort when I backed up his RF toe to whiteline with a vertical cut, a full inch of new growth from coronet in 8 weeks, hind legs moving well, hair coat still gleams in the sun, he likes getting attention, both hinds in acceptable balance,especially proximal/caudal aspects, he still sends up a bugle when I take one of the mares out. This Thursday he will have his teeth done. Current hoof pics as soon as photobucket and my phone cooperate RH LH RF LF