Ive owned Isabella since December 2010 but leased her for a few months before that and am close with her past owner. For at least a year and we arent sure how long before that, Isabella has had unilateral discharge from her right nostril. The discharge is usually somewhat thick and whitish in color. No odor. Only the right side. Havent seen a pattern to it and we've been watching. Teeth have been checked twice and floated once. No dental issues.
This week I had her sinus cavities and nasal area scoped on both sides, xrays of her head, attempts of slides made to see what might be growing or going on and we flushed out her sinus cavities. She was put on antibiotics. So far nothing that would explain the discharge has been found even though my wallet is smaller During the three hrs we spent at the vets this weekend, we didnt see one iota of "snot" anywhere we looked. Of course it was back when we returned to the barn and I have gotten a sample to the vet.
She is a 6yr old OTTB, outside more then in, and does not seem to have any exercise intolerance. She has had the discharge at two different barns. No coughing or other symptoms.
Thanks for any insight.