What is the diagnosis of this individual?

What is the diagnosis of this individual?

4-year old Elizabeth falls off her bike in the driveway at her home. She scarpes her face and elbow. About a week later, she develops small lesions on her face. These lesions are around the chin, mouth, and nose region. These vesicles are crusted, and she has a low grade fever at the time she is brought to her primary care doctor/ While at the doctor, she experiences a nose bleed. The doctor finds that she has the lesions up and into her nose.

What is the diagnosis of the individual? What is the infectious agent?

Why has this rash spread up into her nose? How did it initially start?

How wil she be treated? Is she contagious? Why or why not?