Hi, my Dad has had 2 heart attacks and has been diagnosed with copd. About a month ago he was coughing up so much foamy mucus that we went to the ER where they administered antibiodics and prednisone. He got so much better, but was tired all the time. Finally after adding iron, B-12, Vit. D, he starting feeling much much better. He woke up with a sore throat and cough yesterday and is back to the foamy mucus again. Should I give him prednisone and antibiodics again to get over this infection? I don t want him to suffer as long as he did last time and get worse?