Labradoodle & Goldendoodle Forum
Hi Donna and Welcome!! I am thrilled you took my advice. I am sure you will get tons of advice on helping Lexi.
I recommend you join the Atopic Dermatitis group, which is likely here and the food group. Search the discussions, you'll find a wealth of information.
Since the vet saw her, I am sure this probably is not the issue but we had a DK member whose dog was always scratching and irritated on the chin. It was finally found to be dog lice. The groomer was the one who finally found the cause
Just a thought...when we had cats they would get pimples and blackheads on their chins that would turn into scabs. We were told by our vet that it was caused by their food/water bowls. We used the plastic or rubber kind. We changed to the ceramic or metal type and it went away. The vet did have to scrape and clean their chins but after that it never came back. What are the chances you are using plastic???
That was my thought as well. We also had a cat that had the same problem with plastic bowls and he did fine once I started using ceramic bowls.
I'd also suggest that you join the Food Group. There's lots of information including our recommended food list. As you'll see from prior discussions Royal Canin is not a good food for lots of reasons. I hope you're able to get to the bottom of this.