I am wanting to learn too. I hope the post did not come off as arguing.Sorry Ron, I don’t have a “source” and I’m not here to argue. I’m sharing based on having used this method on my own hen Rosie with great results.
I’m personally familiar with the gamut of these types of medicines based on personal and professional experience, and have used enough of them over the years under the supervision of a doctor, to be my own source.