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Can an m. Catarrhalis bacteria in your sinuses go away on it's own?  do people typically have this bacteria in then w/out an infection? 
1 doctor weighed in

Dr. Bac Nguyen
Family Medicine
In brief: Yes...
Actually most sinus infections don't require antibiotics if the nasal congestions are promptly and adequately treated.
Treating the nasal congestion allows air/oxygen to enter the sinuses and this actually kills the bacteria off and thus antibiotics are not needed unless severe! you always have bacteria in your sinuses, but typically in small numbers and dont cause sinusitis.

In brief: Yes...
Actually most sinus infections don't require antibiotics if the nasal congestions are promptly and adequately treated.
Treating the nasal congestion allows air/oxygen to enter the sinuses and this actually kills the bacteria off and thus antibiotics are not needed unless severe! you always have bacteria in your sinuses, but typically in small numbers and dont cause sinusitis.
Dr. Bac Nguyen
Dr. Bac Nguyen
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2 comments
Dr. Bac Nguyen
This organism is a common cause of sinus and ear infections, but tend to be resistent to penicilli-based med. Other common antibiotics such as erythromycin, bactrim, doxycycline etc.. can treat this infection relatively easily. consult your doc good luck
Dr. Bac Nguyen
Treat your cold/allergies promptly with antihistamine/decongestants and prescription nasal steroid sprays. Check with your doc to see which are best options for you Good luck
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