My child is sick 😢

Do any if you mommies have any home remidies for the croup? Took my son who is 7 almost 8 to the er yesterday for breathing issues he has ashma, they said it was broncitious and sent him home with predizone.. However he has a barking cough seems like the croup to me. He is on inhalers and a breathing treatment machine for ashma. And has been running a fever but of course he wasn't at the er. Will the steriod clear up croup? And do you guys know of any other things to help. I hate when my babies are sick. Any advice is much appreciated 😊