I was sitting on a table in the lunch room when I started coughing, which to my utter embarrassment resulted in a disgusting sound. Unfortunately, there were other colleagues having lunch near me, who expressed their disapproval by starring at me angrily. I was so embarrassed I couldn't even apologize.
I don't want to come off as impolite to my coworkers. Should I apologize next time I meet them or just let the incident be forgotten?