Thank you for the pictures! Nothing came out of the abscesses that looked like yours, but there were definitely "pocket" abscesses. Vetericyn was said to work on staph and it looks a lot better since I started using it, so I'll give it another few days and take more pictures. He was recently moved to this pasture, and the trouble started soon after he arrived. I thought it was because of the cows next door or a fly bite.
~And God took a handful of southerly wind, blew His breath over it and created the horse.~