I have an Arab mare who I rescued about 10 years ago, she was in terrible condition and I have never used her as a riding horse, just sat in my paddock.
I am in Queensland Australia and our property was damaged through the flood last year, and its been a long effort cleaning it up, however this mare somehow got a nail from something washed up, straight up through her hoof.
We pulled it out, and it was incredibly swollen and oozing with pus so we washed it with betadine every day. A month later we got the vet out, as she was still limping and we saw her hoof had a hole that the vet could put her finger through, and it was still just oozing pus and smelt incredibly bad. She was on antibiotics for a week with bute. And she was slowly putting more weight on her foot. However now that she is off the pain killers, she is limping still, and the vet had said if she hadn't improved in a week, it might be damage in the tendons and such which would never heal and just cause her pain. She was in the stables for about 2 weeks, just resting, and she has been let out again these past few days, and today as I was bringing her in, she didn't understand how to go in her stable, and kept turning around and couldn't get past the gate :S
So, over 2 months later she has not improved, except for her hoof a bit less smelly.
Any advice on what to do or similar situations or if a horse can go crazy from pain?