Linda, first of all, I am so sorry to hear that Sadie has been unwell. I'm not surprised that the allergy season has never really ended with the warm winter we've had. Sometimes that deep freeze is what our dogs, and even the wild animals require, to thrive. We humans prefer more tepid conditions.
Just from seeing the Super Bowl coverage, it is easy to see just how mild it is in your neck of the woods. I'm so glad you like the new Vet, and the Clinic itself! That is just as important as feeling comfortable with our Family Physician. Having a Vet who is also a dog owner/lover, as well as one dealing with the same or similar issues as yourself, is another huge plus. I am pleased that part has worked out too.
Most importantly, Sadie is now on the mend. I can only imagine how much her ears must have been bothering her. I'm sure as with any drug, after prolonged use, it often loses its efficacy so it makes sense to change it up. Since dairy can exacerbate allergies, the idea of a Marshmallow is a great one. I never would have thought of it. Do you use the Mini ones, or a full on "Jumbo"?
(Oliver doesn't have allergies so in a small piece of softer cheese, we bury his meds, and it's one gulp and gone! Henry also has a wee nibble at the same time so they both think it's a "treat"
...the lengths to which we go, and it's worth it!)
Big hugs to sweet Sadie, and I hope she feels better soon. It sounds like she's well on her way.