Bernie, a 12-year-old Shih Tzu Peekanese mix, has a chronic cough with no signs of a tumor on X-rays. He has tried steroids, which helped temporarily, and Benadryl seems to provide some relief but not completely. He has a slight heart murmur and is sensitive to heat and humidity. What could be causing the cough, and what steps should be taken to manage it?

November 17th, 2024

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