Honey08
Waffled a lot!
For ages I was wondering how my TB was getting mud fever when there was no mud. He has had actual mud fever (on land that has had cattle on previously) when the fields were wet and muddy. It affected all his legs, one white. Washed with Hibiscrub and dried, Protocon liberally applied and chucked out.
The 'mudless' fever only occurred on the white leg, lots of swelling, scabs and ooze. Barrier creams were having little effect. Thought maybe it was sunburn, applied sun block-no change.
Turns out after all that (couple of years or more), it was an allergy to buttercups! Vet said it's quite common on horses with pink muzzles, not so much white legs but my horse has very sensitive skin. It's the flowers that do it apparently. I now avoid fields with buttercups if I can, otherwise I cut them back to reduce the flowers, Sudocrem on the white bits and so far-no problem!
I'm presuming that that happened in summer when the buttercups had pollen?? Interesting. I'd heard it affect the muzzle area, but never the legs before.