I Have COPD BUT THEY SAID IT WAS MILD RIGHT

i have COPD BUT THEY SAID IT WAS MILD RIGHT NOW. THEY PUT ME ON LPRATROPIUM 0.5MG AND ALBUTEROL SULFATE 3MG. IN THE HOSPITAL WITH OXYGEN WAS NO PROBLEM BUT THEY SENT ME A NEBULIZER MACHINE BUT AFTER THREE DAYS IT GAVE ME A BAD FEELING. DOES THIS MEDICINE HAVE STEROIDS AND COULD THERE BE A DIFFERENCE BETWEEN THE OXIGEN AND NEBULIZER COMPRESSOR ???