My father has COPD and he get was having a lot of mucus building up in his throat. After asking his VA doctor and getting nowhere, I was listening to President Bushes doctor and it dawned on me that it was a copd issue. We had tried everything and nothing got rid of the mucus. To make a long story short, he wasn't taking breathing treatment because it caused him to shake. The doctor gave him Spiriva and the mucus disappeared. My question is, if the mucus returns, what is the best technique to clear his throat? We see the pulminary doctor in late February, but there must be something he can do. Thank you all in advance for reading!