Well, hate to contradict you but Peter Brown has a little bit more credibility than what you're giving him. He doesn't "work for a company that sells farm and pet supplies". No, it's true, he's not a vet, but he has provided a lot of useful and accurate advice to a lot of people, and is recognized for doing so. https://www.chickenwhisperermagazine.com/health-and-wellness/ear-canker