I watch all of your guys videos. Even the Brazilian ones that I don't understand the language lol. I have always wondered what the black liquid you seal the wrap with. It looks like tar but it's not thick enough. You all do great work.
Sometimes they cause pain when they cut away diseased areas, but that allows the medicine to kill all the bacteria. They do try not to cause pain. Sometimes just pressing on a tender hoof can cause pain, but they have to fix the problem.