My father has constant coughing for years. Suggest me a remedy
Consistent coughing/hacking in the morning and at night...clearing throat during the day/ My dad is 65 years old and has been hacking/coughing for years. It has gotten worse as he has gotten older. He claims it is just mucus, which he does spit out most times. He is consistently clearing his throat (during the day) and hacking in the morning and night. He used to smoke, but that has been 30 years or more since he quite. Does anyone know what this could be?