A cold or some other upper respiratory infection can cause the
eustachian tubes to swell, blocking the normal drainage from the middle ear.
The fluid buildup can lower your or your child's ability to hear. And the warm,
moist environment makes it easy for bacteria and viruses to grow, causing an
Susan C. Kim, MD - Pediatrics & Charles M. Myer, III, MD - Otolaryngology
How this information was developed to help you make better health decisions.