Horse Veterinary Questions? Ask an Equine Vet.
Good Afternoon and welcome! I am Dr. Loretta, a licensed veterinarian and I am happy to answer your question.
It is not unusual for horses that have had a serious respiratory problem to develop scar tissue that would cause this noise. It may be in the upper airways and will not harm Aris. This scarring may be more intense when there are more irritants in the air and that could be why it clears after a rain. Since no airway noises are detected by your vet, that means that this is most likely in the upper airways. There is not anything that can be done but as Aris ages, she may develop COPD which can be treated by your vet if it comes to that.
Does that make sense to you?
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