The emergency warning signs of flu sickness include flu-like symptoms improve but then return with fever and worse cough for fever with a rash.
The emergency warning signs of flu sickness include flu-like symptoms improve but then return with fever and worse cough for fever with a rash. PeopleImages Getty Images
The emergency warning signs of flu sickness include flu-like symptoms improve but then return with fever and worse cough for fever with a rash. PeopleImages Getty Images