Those first two photos only go through the periople (cuticle). They're of no concern, the cuticle will grow back. Keep an eye on it, near where it reaches the coronet. You can dab a little triodine on the exposed hoof horn, if you want to.
The crack is of concern. That hoof wall is long long long, and it looks like your farrier trims with higher heels so that puts more pressure on the toe area than is desirable. How am I judging that? Think about it -- when your horse pushes off the ground with his toe, it's putting torque on that long toe and of course it will crack. Yes, wet-dry can influence this, but only if the problem is there to begin with. My horse is barefoot and goes through wet/dry every year - no cracks like that. Hooves in the wild break and split away when too long.
(While looking at the bottom of the hoof) the hoof wall needs to be rasped back towards the white line a bit more, lowered to 1/4" above the sole, and then the toe needs to be rounded. Take the torque off of that crack. The rounding helps prevent cracks by sending some of the force of hoof impact inward rather than outward. If you do this, you might see that there is further adjusting to do, such as lowering the hoof walls to 1/4" above the sole all the way around, and then rounding the outer edge of wall. You might find you need to lower the heels a bit, too, but no more than 1/8" at a time every week or two - don't make poor Teddy heel-sore, give him time to tell you that his digital cushion development is fine. After that, the crack should start to grow out and not get worse. I wish I were there to help. Maybe you can ask your farrier to do this trim?
Soaking with white lightning is amazing. It works for anaerobic bacteria very well, and the vinegar you mix with it will help with any fungus. Triodine is another wonderful product that I use, and it kills fungus and bacteria. DO NOT use water when you soak. Don't mix bleach and water. Keep water away. Beware of products that might irritate the frog or coronary band - the fleshy parts of the hoof. Rule of thumb: keep everything off of the coronary band unless it's injured terribly. As for frog, bleach can be too harsh - if you must use bleach, mix with glycerin lotion.
No diet, no hoof. No hoof, no horse. No horse is not an option!
Last edited by Feathers7; 06-13-2019 at 09:09 PM.
Reason: Clarity of statement