Comment by msla

The right answer for your son would have been for them to jump right into surgery (or whatever you Brits call it, seeing as you apparently call a doctor's office a "surgery"... the act of cutting into skin for medicinal purposes) for something which looked like a flu complicated by an ear infection. Reaching that diagnosis would likely have involved magic on the part of the MD (or whatever you call a physician) and MDs don't get their licenses from Hogwarts, not even in the UK.