A 6-year-old child presents to the clinic with a bright red rash on their cheeks accompanied by a lace-like rash on their trunk and limbs, low- grade fever with complaints of achiness. What is the nurse's best action?

Encourage rest, fluids, and antipyretics like ibuprofen for symptom management.

Instruct the parent to give aspirin for the fever and pain.

Administer antibiotics to treat the viral infection.

Perform an erythrocyte sedimentation rate (ESR) to determine causative bacteria