I heard from Adi, and there is some swelling in her back. They prescribed an anti-inflammatory. I hope the diagnosis is accurate, and it gives her relief quickly. Also praying it heals well.
They also prescribed some antibiotic ointment for the skin irritations, as there is an infection present. I am going to buy her a vet recommended dog shirt for anti-itching and anti-licking, so she doesn't have to wear the cone of shame. (She never does well with them, gets quite depressed. And I'm sure they are uncomfortable, as well!)
Thank you all for the thoughts, prayers, and hugs.
@Festive Spirit