My grandmother has this continuous problem for the last 20 years of heaviness in chest due to mucus build up. She always feels like a weight on her chest and constantly forces it out by coughing. She constantly  draws the mucus up her nose to release it from her throat to get some relief. Can you advise what to do.
Thanks for your question completely understand your issue. Actually in obstructive airway disease or in lower resp tract infection and many other diseases mucosal glands in the bronchus gets hypertrophied or enlarged and so is the secretions from them. These secretions have to Chat Doctor. If the secretions are yellow u need to give some antibiotics to clear up the infection .you can consult a pulmonologist to prescribe the 