3 different vets in the area could not diagnosis my dogs symptoms, she had a really bad and deep cough, that they all kept giving me different pills that did not work, and said it was her heart. I finally went to a real hospital, they ultra sound her heart and said there was nothing wrong with it. said it was a tracheal collapse, gave me medicine to give her, and finally no more cough. I spent over a thousand dollars between those other 3.