Hello and Welcome to ‘Ask A Doctor’ service.
I have reviewed your query and here is my advice.
Though single CIGAR does not have any hazards on your health except if you are bronchial asthma/hypersensitive pneumonitis
patient where you may have bronchospasm
due to irritation of tracheobronchial tree. Secondly, most smokers start with this excuse of smoking
1 cigar later they become either addicted or habituated with smoking so don't start smoking.
Hope I have answered your query. Let me know if I can assist you further.
Dr. Shivakumar. M. C