Hi I have a 2 year old male neutered cat that has had ongoing respiratory issues. My vet suspects he may have a polyp in the back of his airway and referred me to a specialist. The specialist wanted to rule out any other diseases so treated him for heart worm, upper respiratory infection and asthma. His symptoms only mildly improved with the asthma pump but has recently been getting worst. He seems to only has breathing issues when he purrs. I saw Dr. Krista Magnifico on YouTube doing polyp removals and I am interested in her opinion.