Hi I have a problem with clearning nasal congestion. My horse only shows symptoms when under excercise. He isn't coughing( there was sickness in the barn) no fever, but I would suspect that he had a mild virus that is now gone, but still congested air ways (nose). I am looking for solutions as to how to clear his sinuses. His lungs are clear, so anything for his lungs will not help. I have used spytalisyn (not spelled right sorry), and the omega alpha product Respi-clear I beleive, with no sucess. I don't think (and the vet does not think) that it is allergy based. I used Xzanatrol on him, and it seemed to work, but the symptoms are now back almost a week later... the other horses on the grounds are still not healthy, but they are only mild cases... and they too seem to have the same symptoms... stuffed up head, but no outward signs of sickness. I have also used mild iodine solution up his nose, and apple cidar vinegar, with only mild success as he is better, just not nearly 'better enough' he is a race horse and I have stakes races to enter him into very shortly, or forgo my entire season (except at over night events), so any ideas would be helpful. Any products or ideas, or old time remedy suggestions? Thanks deb