After the veterinarian leaves, the task of monitoring a healing wound for signs of infection falls to you, your horse’s caretaker. But if you aren’t accustomed to it, the sight of an open wound can be alarming, even if it’s healthy and healing on schedule. How do you distinguish “ew” from “infected”? Here are a few tips:• All healing wounds produce exudate, a slimy discharge containing cellular debris that forms on the surface. Exudate alone isn’t a sign of infection.