Hello my husband has developed a persistent cough. He had his scans last week and they were good, at that time his doctor prescribed a cough suppressant. She said if his cough was still bad On Monday she would call in a steroid for him. He will be taking the prednisone for 10 days starting at 40 mg and tapering down over the course of ten days. My question is does prednisone cancel out the good results he is getting from the immunotherapy? Bubbles? Ed? Any knowledge you have is greatly appreciated.