This was completely new news to me, so I thought it was worthy of sharing.
My horse Red has been on stall rest for the past 3 weeks, due to an injury. I have a thread going about his progress here, if you want details: Need some healing prayers for my boy Red (some graphic photos -- beware!)
But I thought it was worthy to start a new thread about cold hosing.
I learned from my new vet that cold hosing is great for a fresh new wound. But you should never cold hose a wound once it starts to develop tissue to fill in the wound, because it stimulates the growth of proud flesh. This is also why you should try to avoid cleaning (unless you really need to) an older wound because even the stimulation of brushing or rubbing the wound to clean it can stimulate proud flesh.
This blows my mind because you always heard the old cowboy rule of: If you've got a wound, do cold hose therapy."
I trust my vet 120% as she is fresh out of school and specializes in equine lameness (and I knew her before she went to school, so I know her personally too). What she says is considered gold, in my mind. So if she says no cold hosing for Red, he isn't going to get it!
New thought to process though.