Hello! My mother, 91 yo, is suffering from severe coughing, especially when she is to lie down. Consulted an EENT, said it was just allergies. Lungs are clear. When she is coughing there is a small amount of phelgm. She is taking Diltiazem and Norvasc, Cetirizine for allergies. We are in a quandry if we need to bring her to a pulmonologist? Thank you!