Thanks for your query,
There is hematoma
formation over injury site and it will subside in few days.
Apply cold compresses over injured area and give acetaminophen
for pain relief.
Observe for any warning symptoms that is-lethargy,vomiting
,bleeding from ear or nose any abnormal movement for 24 hours and in case you find any get her evaluated by pediatrician
Wishing your child good health.