Cold and ear infection
A cold can lead to an ear infection. During an infection , the eustachian tubes which are tubs that connect the middle ear to the back of the throat can become blocked. This can trap fluid and bacteria in the middle ear and create a perfect environment for an infection.
Babies , toddlers and preschoolers are susceptible to fluid buildup because the eustachian tubes are shorter, narrower and more horizontal than those of older children.
As children grow , the eustachian tubes grows longer and becomes more vertical . This allows the fluid to drain more easily.
The fluid filled ear creates a conducive environment for bacteria to multiply. This may result in pain and swelling in and around the baby’s ear drum.
NOTE
It is common for more than 80% of children to have ear infection before the age of 3.
Content Sources
Complications of the Common Cold. WebMD. http://www.webmd.com/cold-and-flu/cold-guide/common-cold-complications#2. Accessed June 13th, 2017
Common cold complications. Healthline . http://www.healthline.com/health/common-cold-complications. Accessed June 13th, 2017