My mini filly has had one nostril discharging quite a bit of dirt and mucus for the past week or so. We have been cleaning it out regularly, thinking maybe she just had a drainage issue that is resolving itself or that she hit it or something, but today I noticed she has some dry blood mixed in. It has been very dry lately and she has been in the pasture quite a bit, but neither she nor any of my other horses have ever had this problem. She turns a year old this week. I will probably be calling the vet out today or at least tomorrow to check it out, but does anyone have any ideas/suggestions?