Thanks for your question on Healthcare Magic.
I can understand your concern.
By your history and description, possibility of chronic bronchitis is more.
She was a smoker, having
shortness of breath, coughing, benign lung nodule etc.
All these favor chronic bronchitis more.
So better to
consult pulmonologist and get done clinical examination of respiratory system and PFT (Pulmonary Function Test).
PFT will not only diagnose bronchitis but it will also tell you about severity of the disease and treatment is based on severity only.
She will need inhaled bronchodilators (formoterol or
salmeterol) and inhaled corticosteroid (ICS) (
budesonide or
fluticasone).
Don't worry, she will be alright with all these.
Hope I have solved your query. I will be happy to help you further. Wishing good health to your mother. Thanks.