My husband just had a heart attack at the end of July 2015. He was also diagnosed with chronic heart failure and pulmonary hypertension. He is on a regimen of medication- losartan, brilinta for his stents, lipitor, mononitrate, low dose aspirin, potassium, lasix. He has a constant cough. Vicks and camphor seem to help. But can you recommend anything else to reduce cough?