The most common cause of chronic upper airway obstruction in adults is OSA. Less common but potential causes of laryngeal pathology and subsequent airway compromise are tuberculosis, sarcoidosis, granulomatosis with polyangiitis, and Behcet disease.
there are meetings that people can attend. There could also be family urging them to quit. There are also things you can buy to help stop smoking or stop the cravings to smoke
No you shouldn't mainly because it is not in your scope of practice. there will be legal consequences if you are caught and you are not licensed to administer medication
