Skin issue

[Lee Seidman]

Lexi has a Nickel size. Patch of scabby skin on each side of her tail our Vet took a scraping and nothing was there. Any ideas?

[Karen, Jasper and Jackdoodle]

I think it's possible that it's related to her Addison's meds. The dose may need to be adjusted. Is she on prednisone?