Who goes to the ER for flu like symptoms? Even with insurance the costs would make this a fairly expensive trip, and the wait times can involve hours. I mean I’m sure there are some but it’s hard to imagine that this a choice that lots of people would make.

If you want something prescribed the local urgent care center is a much quicker and much cheaper option. For children you can also generally get same day appointments at most pediatric clinics.

It would require a pretty severe case to justify a trip to the ER.