Toddler with croup

Hi,

My toddler has been diagnosed with croup twice, first time had a dexametasone shot and he was ok in a week.

But this time, he has no fever, no mucus anything except for the barking cough which he’s had for over 3 weeks. Sometimes more sometimes less.

He’s feeling great and everything is ok beside the cough. Had chest X-rays and everything seems fine