School have sent dc home for testing 2nd time in 10 days

[aahhh]

Dc has been sent home again with a cough. He didn't have one before he went and was only there 2 hours. They checked temp and it was fine

Had similar 10 days ago as when he gets a cold he gets a bit chesty. Negative result

This is a nightmare but understand they have to do it

Is he coughing at home? How much was he coughing?

Is it a new cough or been lingering since he was last sent home/ test result?

How old is he? Could he be faking it to get out of school? My lg 5 has been allowed to school with cough/cold I phoned up first thing they said aslong as its not continuous cough she was fine togo in i was expecting them to phone me to collect her but never heard anything thankfully her school understands that not every cough is covid