The nurse takes a call from a concerned mother whose infant received routine immunizations the day before and now has a temperature of 101°F (38.3°C), is fussy, and pulling at the injection site. The mother wants to know what she should do. Which is the best response from the nurse to this mother?

"You can give your child ice cold fluids and cover the injection site so that he doesn't scratch the site and get it infected."

"This is a common reaction. Give your child acetaminophen, cuddle him, and apply a cool compress to the injection site."

"You need to bring the baby to the emergency department to be sure he is not having an allergic reaction."

"All babies have similar reactions, but you should call back if he is still fussy in 24 hours."