Went to er tonight,i was wheezing away?

i could not breath with the bronchitis,i was wheezing so i went to the er.they did a chest xray,which showed no pneumonia.they gave me 50 grams of prednisone intravenously.also they gave me a albuterol pipe,twice.doc said take 50 mg of prendisone for the next 4 days.im not crazy about that because last time i took it,i had major side effects