Not lame and got the good farrier. It's just started, I have been advised to use eucalyptus oil in the cavity. Just wondered if there are other approaches or no-nos, or background info I should be aware of.
You'll need to scrub the area every day, (snowy weather is soooo helpful )then get a farriers nail and actually scrape out the hole so that every single bit of dirt and grit was out, completely clean. Then follow that up with a spray of footmaster and once a week, instead of the footmaster, syringe in Hydrogen Peroxide 6%.
I used vaseline or cornucresine or effol moisteriser around the rest of the hoof as the hoofmaster can be quite drying.
This will clear it up and eventually and the hoof will grow down and the damaged area was paired away during his regular shoeing. Took me about a year of religous cleaning though.
You can also get in behind the shoe from underneath and scrape any grit out with your farriers nail and direct the spray down there as well.
You'll also need a head torch so you can see to get right in there.
here are some links to helpful 'debates' on the matter - it is a good idea to research your own information and assess the reason as to why your horse has developed this
Thanks baileyhoss, that's very useful.
Not sure why she's got it now except her field is very wet, though she is stabled every night. Fed on alalfa a oil and balancer and hay - not shod, never has been. Paddock is very "meadow" rather than lush grass and not a lot of that. I'll scrub with hibiscub in a trug and then balance her hoof on bucket (she's quite calm) and drizzle in the eucalyptus oil.
Another thing that you could consider trying - sounds weird but have a similar condtion on my big toe! Nail has thickened and is crumbling under the top of the nail. Treatment for it is an antifungal cream rubbed into the nail quick twice daily. Might be worth trying to see if it is a problem that starts hidden inside the nailbed. Rub the cream on the coronary band twice daily. I'm using Micreme-H on my toe and you can see the nail is now growing properly.
My mare has seedy toe at the moment as she has just recovered from laminitis a few months ago. My farrier scraped the hole out and he gave me some 'Antibac' to put on every other day. My farrier was out last week and he said the seedy toe has now gone but told me to use the rest of the antibac until I finish it.
scrub out with strong saline and spray with sheep foot rot spray! 3x a week squirt in hydrogen peroxide before the foot rot spray! farrier every 4 weeks for deep clean. and pray for more snow and frost to help keep it clean!! make sure her bed at night is very deep and very clean and dry!
Agree with the hydrogen peroxide. My farrier then advised to allow the hole to dry and pack it with cotton wool mixed with Stockholm Tar to protect it. You can remove the packing to re-treat with the peroxide. Seemed to work well, but really messy to soak the cotton wool in the tar!