Horse thrush is an area infected triggered by too much dirt and debris within the frog of the foot. Thrush is very smelly and your horse is likely to have a tender central area of its hoof and probably also the other areas of the frog. Fissures in the skin with blackened regions are a typical sign of horse thrush.
Most riders don't have spare money to spend on keeping their horse healthy so it's possibly essential to know that there are methods to treat your animal on a shoe-string budget should thrush strike. Antiseptics can help and many owners use Betadine, Kopertox or Thrush Buster. Perhaps a little caustic and not the best, many owners even use bleach or hydrogen peroxide. Obviously though it is important that care is be applied so as not to do more harm by employing the incorrect stuff.
It's not difficult to treat your horse on your own if the thush is caught promptly. Although, if the horse looks like it's looking lame then you would be advised to call on a vet. You should not leave it for too long because it will severely damage the foot of your animal.
Regular inspection of the frogs of your animal's feet is a great prevention of thrush. Proper foot care with a hook knife and maybe a small wire brush to clean out the crevices in your animal's feet is essential to ensure that your horse doesn't get thrush.
Preventing thrush is important and keeping the horse away from soft and muddy areas for extended periods of time is advisable as is making sure that the stable is kept clean. You need to ensure that the horse doesn't accumulate a build-up of dirt in it's feet. This is your best plan towards keeping your horse thrush-free.