I've fostered 2 foals from a horse rescue, they arrived Saturday evening! (filly is 6 months old and colt is 8 months old) both are underweight and havent had it easy! In saying this they really are the friendliest little things that need loads of TLC! While doing the am feed this morning I noticed that the 8 month old foal has a white discharge from his left (my left as I look at him) nostril. Do I need to worry or could it be the stress of traveling etc? Please Advise!