I am new here and new to horse ownership too! I purchased a horse from an auction a week or so ago against the advice of everyone! He is my first horse ever so I am totally new to this world of horse issues. I did have him vet checked a week ago and she said that he looked fine, from what she could tell, but if stuff was still coming out of his nose is 3 to 4 weeks to call her back.
So the issue is when I feed him his grain there seems to be some coming out of his nose. Also he will cough and a bunch will come back up and out of his mouth. I don't know if he is just eating too fast from having been starved in the past or what. I have thought about the possibility of a cleft palate too. If anyone has ever heard of anything like this let me know. I would love to have the knowledge of more experiened horse-people.