Hi. Thank You For Taking My Question. I Go To

Hi. Thank you for taking my question. I go to my dentist regularly for cleanings so my breath is fine, but i notice an odor coming from the sides of the skin of my outer nostrils. Some people make a face when I talk making me believe it's my breath but when I rub the skin area it smells like cheese? What can I do? I'm so self conscious and I'm constantly chewing a mint candy or something for fresh breath. It's embarrassing when people rub their nose when I talk. Thanks for your help!