My child was hospitalized with a high fever and cough, and the flu test results confirmed influenza B. After quarantine, if the child has been fever-free for more than 24 hours, they can return to school. While influenza B doesn't cause a fever that lasts long, it's no exaggeration to say that they're in pain all day long with stomachache and muscle pain. I frequently massaged my child and monitored their health. It took about a week to recover, but fortunately, on the fourth day, my child started to feel better. I'm satisfied that my child's health seems to be recovering quickly thanks to the care of Dr. Lee Hyeon-jeong, a pediatrician. These days, there are cases of influenza B coming in shortly after a confirmed case of influenza A, so I hope they take good care of their health.