This is Dr Basu, experienced Internal Medicine Specialist.
I am here to address your concerns and provide great service.
You likely developed bronchitis from inflammation of the airways.
Second hand smoke exposure can cause this.
Viral infection can cause this also.
Since you do not have any fever, shortness of breath or any other symptoms, this is not serious or contagious.
You can see your doctor for a clinical valuation.
You can try over the counter Mucinex DM cough suppressant meanwhile.
It was my pleasure to help you today.
If I have answered all your questions, Please rate my response Excellent (click on the 5th star).
Please bookmark my profile for asking further questions!
This is the link to my profile: