Flu in Children: Children may become infected with influenza by inhaling infected droplets in the air or if they come in contact with secretions from an infected person. Symptoms in children include a high-grade fever up to 104 F, chills, headaches, sore throat, cough, and muscle aches. Treatment of flu in children involves rest, increased fluid intake, treating fever with acetaminophen or ibuprofen, using a humidifier, and using a rubber suction bulb to remove nasal secretions in younger children.