Monitor temperature , do a covid antigen test .

As she is active, there is no need to worry. Fever is the body's response to infection. So no need to worry unless fever is high like more than 102 F. Give lukewarm sponging for fever. Give steam inhalation. Give warm liquids to drink like warm water with honey, soup, tea etc. Give crocin for fever above 100 F. Check oxygen level and fever every 6 hours. If any new symptoms occur, then contact a pediatrician. Get her covid test done. Keep her away from elder people above 60 years