Hand, foot & mouth misdiagnoses?

[dogmom14]

I'm a fairly healthy 25-year-old woman. I work retail. 9 days ago I was diagnosed with hand foot & mouth after I went to a walk in clinic with a bizarre rash on my hands and feet. It was extremely itchy and the "hives" were ring-like. No hives/sores on my mouth. They gave me a steroid shot and a Benadryl shot and sent me on my way. The rash went away. It's now been 9 days and I still have a low grade fever, very little energy, little appetite and just generally feeling bad. I returned to the same clinic because my fever wasn't subsiding, so they prescribed me a z-pack... even though this is viral.

I have no idea what this could be. I've missed a week of work because I still have a fever. I am alternating advil Tylenol. Drinking plenty of fluids. Resting.