A parent asked the nurse how to care for their 4-year-old child after receiving the Haemophilus influenzae type b (Hib) conjugate vaccine. Which instruction should the nurse provide?

Any level of fever is serious and should be reported right away.

Chewable children's aspirin will help prevent inflammation.

Apply a cool pack to the injection site to reduce discomfort.

Keep the child home from daycare for the next two days.